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Related to compos: compos mentis
be compos mentis
To be sane or mentally competent. "Compos mentis" is Latin for "of sound mind." I doubt that Travis was compos mentis when he committed that crime.
non compos (mentis)
Not sane or mentally competent. The phrase is Latin for "not of sound mind." Based on the orders he's been giving lately, many believe him to be non compos. The judge ruled that she had been non compos mentis at the time, and thus could not be held legally liable.
non compos poopoo
slang Extremely drunk. A faux Latinism probably modeled on the real Latin phrase "non compos mentis," meaning not sane or mentally competent. There's no way I'm letting you drive home when you're this non compos poopoo.
Farlex Dictionary of Idioms. © 2022 Farlex, Inc, all rights reserved.
be ˌcompos ˈmentis(from Latin, formal or humorous) having full control of your mind: Are you sure she was fully compos mentis when she said that?
Farlex Partner Idioms Dictionary © Farlex 2017
non compos(ˈnɑn ˈkɑmpos)
1. mod. out of one’s mind; non compos mentis. She is strictly non compos!
2. and non compos poopoo mod. alcohol intoxicated. That gal isn’t just drunk. She’s non compos poopoo.
non compos poopooverb
See non compos
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.
Crazy; mentally incapacitated and therefore unable to be responsible for one’s speech or actions. This term is an abbreviation of the Latin non compos mentis, literally translated as “not master of one’s mind,” or “not of sound mind.” It dates from the seventeenth century and today is loosely used for irrational behavior, as well as surviving in legal terminology.
The Dictionary of Clichés by Christine Ammer Copyright © 2013 by Christine Ammer