compo

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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.
See also: compo, mentis

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.
See also: compo, non

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.
See also: compo, non, poopoo
Farlex Dictionary of Idioms. © 2015 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?
See also: compo, mentis
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.
See also: compo, non

non compos poopoo

verb
See also: compo, non, poopoo
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.

non compos

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.
See also: compo, non
The Dictionary of Clichés by Christine Ammer Copyright © 2013 by Christine Ammer
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References in periodicals archive ?
The amount of strontium release from the COMPO 2 and COMPO 6 was significantly different though both compositions contain the same mol% of strontium oxide; COMPO 2 with both fluoride and strontium re- lease is almost double compared to the COMPO 6.