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Related to junk: junk food, Junk bonds
An especially nasty, vicious, or savage person or animal (especially a dog). Of a person, often used in the phrase "meaner than a junkyard dog." Though he's always polite when he's in public, Tim's husband is meaner than a junkyard dog behind closed doors. That standard poodle may look cute and fluffy, but it's a junkyard dog, you can be sure about that.
junk in the trunk
slang Additional fat in one's buttocks (typically on a woman). The term is used both positively and negatively. Primarily heard in US. I like a curvy woman, one with a little junk in the trunk! I need to start working out again—I've got too much junk in the trunk these days.
annoying, unsolicited mail, such as promotional letters, etc. I am so incredibly tired of getting pound after pound of junk mail every day. I could just scream.
Prepackaged snack food that is high in calories but low in nutritional value; also, anything attractive but negligible in value. For example, Nell loves potato chips and other junk food, or When I'm sick in bed I often resort to TV soap operas and similar junk food. [c. 1970]
Third-class mail, such as unsolicited advertisements and flyers, that is sent indiscriminately. For example, While we were on vacation the front hall filled up with junk mail. [c. 1950]
1. n. herion; drugs. Is Sam still on junk? It will kill him.
2. n. a Caucasian. (Rude and derogatory.) Those cops are junk and they hate my guts.
3. and the junk. n. the genitals. (see also jonx.) Stop itching your junk, you freak. 3. n. possessions. I’ll be ready to go as soon as I get my junk together.
n. a low-rated corporate bond that pays higher interest because of greater risk. (Parallel to junk food.) Don’t put all your money into junk bonds.
n. an unwanted and irritating fax message. We got nothing but a whole pile of junk faxes today.
n. food that is typically high in fats and salt and low in nutritional value; food from a fast-food restaurant. Junk food tastes good no matter how greasy it is.
n. a dilapidated old car; a dilapidated house or other structure. They lived in that junk heap for thirty years and never painted it.
imperative Throw it away! This is taking up too much space. Junk it!
n. police who enforce the narcotics laws. (Underworld.) The junk squad has more than it can handle trying to keep up with the hard stuff.
n. a jail cell where addicts are kept. (see also drunk tank.) That junk tank is a very dangerous place.
on the junk
mod. on drugs; addicted to drugs. (see also junk.) Max has been on the junk for all of his adult life.