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Related to rock: rock music, Rockstar
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1. noun, slang A precious gem, especially a diamond. A: "Did you see that rock on her finger?" B: "Yeah, I didn't know she was engaged!" The rocks in that necklace are worth nearly a million dollars.
2. noun Rock music, a genre of music characterized by the use of the electric guitar and bass. A shortened form of "rock and roll," from which it originated. I was into rock when I was in high school, but now I'm more into electronic music. The bar always blasts rock at such a high volume that I can never hear what anyone is saying.
3. noun, slang An ice cube. Typically used in the plural. I'd like a whiskey on the rocks, please.
4. noun, vulgar slang A testicle. Almost always used figuratively to mean confidence, courage, bravado, etc. Exclusively used in the plural. You've got some rocks on you to stand up to the boss like that, kid.
5. noun, slang A piece of crack cocaine. Typically used in the plural. Denny got caught selling rocks and got hit with a mandatory minimum.
6. adjective Pertaining to rock music. This is my favorite rock station on the radio. The band surprised its fans when it announced that its next album would be a rock opera.
7. verb To perform rock music, especially skillfully or with great energy and enthusiasm. My days of going on stage to rock are behind me at this point. Don't worry about the audience. Just go out there and rock.
8. verb To dance or move along to rock music or a similar genre. This song really gets me rocking!
9. verb, slang To be excellent or awesome. You got me my favorite doughnut! You rock! I can't believe you didn't like that movie! It rocked! Wow, you got into your dream school! That rocks!

rock (music)

A style of popular music that first emerged in the 1960s as an outgrowth of rock and roll. Rock music is known for its electric instruments, heavy beat, energetic nature, and tendency toward innovation. Did any single group do more to popularize rock music than the Beatles? Get this boy band crap outta here, will ya? Crank up some rock like The Who or something!
See also: rock

rock (something)

1. To do something very well. Pat rocked his presentation today. I think the class really learned a lot about the Spanish-American War from him.
2. To be very attractive and exude confidence because of a particular aspect of one's appearance. Your figure looks so great in that dress, girl. You're rocking it! Sophie sure is rocking that pastel purple hair. I really wish I weren't too shy to dye my hair fun colors.
See also: rock
Farlex Dictionary of Idioms. © 2022 Farlex, Inc, all rights reserved.


1. and rock candy n. crack, a crystallized form of cocaine. (see also rocks.) Some call it rock candy, and some call it crack.
2. n. a crystallized form of heroin used for smoking. (Drugs.) Max is hooked on rock—the kind that you smoke. Powder is everywhere, but you can hardly find rock anymore.
3. n. a diamond or other gemstone. Look at the size of that rock in her ring.
4. Go to rocks.
5. n. a baseball; a basketball. Michael passed the rock to Scottie, who turned and dropped it in the basket.
6. in. to be really great. The concerts didn’t rock, but we had a good time throwing chairs.


mod. excellent. (Collegiate.) We had a rocking time!


1. n. ice cubes. Can I have a few rocks in my drink, please?
2. n. Xerox Inc. (Securities markets, New York Stock Exchange.) When she says, “Buy me a thousand rocks at the market,” that means she wants one thousand shares of Xerox at whatever the market price is at the moment.
3. n. money; a dollar. (Underworld.) Twenty rocks for that?
4. n. the testicles. (see also stones. Usually objectionable.) I was afraid I’d get kicked in the rocks, so I stayed back.
See also: rock
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.
References in classic literature ?
She unfastened this card and returned to the path, where the light was better, and sat herself down upon a slab of rock to read the printing.
She was to be left on the rock to perish, an end to one of her race more terrible than death by fire or torture, for is it not written in the book of the tribe that there is no path through water to the happy hunting-ground?
The river had worn away the edge of the soft rock in such a manner as to render its first pitch less abrupt and perpendicular than is usual at waterfalls.
Ishmael threw his rifle to his shoulder, and at the next moment it was pointed upward at the summit of the rock. Before time was given for a word of remonstrance, it had sent forth its contents, in its usual streak of bright flame.
Sam, sliding silently down the surface of the rock, let himself quietly into his skiff, cast loose the fastening, and abandoned himself to the rapid current, which in that place runs like a mill stream, and soon swept him off from the neighborhood.
The thin covering of earth on the rock supported but a scanty and faded herbage, and most of the trees that had found root in the fissures had already died, during the in tense heats of preceding summers.
Then up rose from the hill in the rugged Cantabrian valley a sound such as had not been heard in those parts before, nor was again, until the streams which rippled amid the rocks had been frozen by over four hundred winters and thawed by as many returning springs.
The bed of the watercourse was covered with fragments of broken rocks, which had fallen from above, offering so many obstructions to the course of the rapid stream, which vexed and fretted about them,--forming at intervals small waterfalls, pouring over into deep basins, or splashing wildly upon heaps of stones.
The two now ran forward with swift leaps, caught up their heads, and put them on again, after which they sprang back to their positions on the rocks.
A day or two of rest will set me up, and I hope I shall find among the rocks certain herbs most excellent for bruises."
There is a pretty high rock on the northwest of Earraid, which
Come, I will go at once," and she rose and pushed at the rock.
With him sank the rock, which, even in his dying agony he had still held up.
There is no help for it; your best chance will be to get by her as fast as ever you can, for if you dawdle about her rock while you are putting on your armour, she may catch you with a second cast of her six heads, and snap up another half dozen of your men; so drive your ship past her at full speed, and roar out lustily to Crataiis who is Scylla's dam, bad luck to her; she will then stop her from making a second raid upon you.'
(Graspus), which inhabits the crevices of the rock, stole the fish from the side of the nest, as soon as we had disturbed the parent birds.