plumb

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half a bubble off plumb

Strange; silly; crazy. Referring to the bubble inside a level. A: "She's a sweet old lady, but yeah, she's definitely half a bubble off plumb." B: "OK, yeah, I was sort of startled when she started talking to her rosebush."
See also: bubble, half, off, plumb

off plumb

Not completely or precisely vertical. I think we need to call the builder again because that wall is definitely off plumb.
See also: off, plumb

out of plumb

Not completely or precisely vertical. I think we need to call the builder again because that wall is definitely out of plumb.
See also: of, out, plumb

pert near, but not plumb

Nearly but not completely ideal; adequate or serviceable but imperfect. These submissions are pert near but not plumb. I hope we get some better ones.
See also: but, not, plumb

plumb crazy

slang Utterly crazy or insane. ("Plumb" is used here as intensifier.) Primarily heard in US. This idea of yours is plumb crazy. Poor guy went plumb crazy after his wife died.
See also: crazy, plumb

plumb loco

slang Utterly crazy or insane. ("Loco" means "mad" or "crazy" in Spanish, with "plumb" being used as an intensifier.) Primarily heard in US. This idea of yours is plumb loco. Poor guy went plumb loco after his wife died.
See also: loco, plumb

plumb new depths (of something)

To experience, understand, explore, or exhibit something in explicit detail or to an extreme degree. This new study aims to plumb new depths of the relationship between one's mood and one's appetite. I plumbed new depths of grief and despair after the death of my son. These valiant officers plumb new depths of heroism every day that they step foot on our streets.
See also: depth, new, plumb

plumb the depths (of something)

To experience, understand, explore, or exhibit something in explicit detail or to an extreme degree. These valiant officers plumb the depths of heroism every day that they step foot on our streets. This new study aims to plumb the depths of the relationship between one's mood and one's appetite. I plumbed the depths of grief and despair for years after the death of my son. My hope is that I can now help others who are struggling in similar situations.
See also: depth, plumb
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

half a bubble off plumb

Fig. giddy; crazy. She is acting about half a bubble off plumb. What is wrong with her? Tom is just half a bubble off plumb, but he is all heart.
See also: bubble, half, off, plumb

plumb loco

Rur. completely crazy. (Loco is from a Spanish word meaning "mad.") You're plumb loco if you think I'll go along with that. All those people were running around like they were plumb loco.
See also: loco, plumb
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.

plumb the depths

1. If someone's behaviour plumbs the depths, it is extremely bad. This crime plumbs the very depths of the abyss into which it is possible for the human spirit to sink.
2. If you plumb the depths of something, you find out everything you can about it. He doesn't plumb the depths of a text in the way of his contemporaries. We can never fully plumb the depths of the unconscious.
3. If someone plumbs the depths of an unpleasant or difficult situation or emotion, they experience it to an extreme degree. They frequently plumb the depths of loneliness, humiliation and despair. Note: The above expressions relate to sailing in former times. When a ship was in shallow water one of the sailors would find out how deep the water was by dropping a piece of lead on a string, called a `plumb', over the side of the ship.
See also: depth, plumb

plumb new depths

If someone or something plumbs new depths, they behave even worse or are even worse than before. Critics and the public both expected him to plumb new depths of tastelessness. She will be remembered for having plumbed new depths in local government corruption.
See also: depth, new, plumb
Collins COBUILD Idioms Dictionary, 3rd ed. © HarperCollins Publishers 2012

out of plumb

not exactly vertical.
1984 T. Coraghessan Boyle Budding Prospects His bad eye, I noticed, had gone crazy. Normally it was just slightly out of plumb.
See also: of, out, plumb

plumb the depths

1 reach the extremes of evil or unhappiness. 2 inquire into the most obscure or secret aspects of something.
See also: depth, plumb
Farlex Partner Idioms Dictionary © Farlex 2017

plumb the ˈdepths of something

reach the lowest or most extreme point of something: When his friend was killed, he plumbed the depths of despair.Originally, this referred to finding out the depth of the sea, etc. by dropping a weight tied to a rope into the water.
See also: depth, of, plumb, something
Farlex Partner Idioms Dictionary © Farlex 2017

half a bubble off plumb

phr. giddy; crazy. Tom is just half a bubble off plumb, but he is all heart.
See also: bubble, half, off, plumb

plumb loco

(ˈpləm ˈloko)
mod. completely crazy. (Folksy. Loco is from a Spanish word meaning “mad.”) You’re plumb loco if you think I’ll go along with that.
See also: loco, plumb
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.

plumb the depths, to

Get to the bottom of something. This term has been used literally since the first half of the 1500s for measuring the depth of a body of water, using a line weighted with a lead ball, or plumb. Its figurative use came a few decades later and has survived the death of the literal meaning, which gave way to more sophisticated means of measuring. E. W. Gregory used it in The Furniture Collector (1916): “. . . engaged in trying to plumb the depths of duplicity to which dealers can descend in faking old furniture.”
See also: plumb, to
The Dictionary of Clichés by Christine Ammer Copyright © 2013 by Christine Ammer
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