A polite term used in the 1950s and early 1960s to describe a male who is sexually attracted to his fellow men. It is a term that is rarely used today.
Lionel’s a fantastic hairdresser - he’s just a bit of an invert, that’s all! ‘
by Colonel Barnaby January 18, 2023
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A girl who is so ugly that she gets uglier as you become more intoxicated, rather than becoming more attractive.
-Dude, I'm gonna drink until she's pretty
-I don't think it will work. She's definitely an invert.
by chevynut14 January 12, 2010
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Penis erreted from the anus.
Man Micheal! You got a big invert huh!
by John Matt June 18, 2003
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In linear algebra, an n-by-n square matrix A is called invertible (also nonsingular or nondegenerate) if there exists an n-by-n square matrix B such that:

AB = BA = I (where I is the Identity Matrix).

Otherwise, in life, it refers to the case where something can be transformed into something else and transformed back.
Randy: Sally is so invertible; real marriage material.

Sandy: I know, nonsingularly so. Put a few drinks in her and you can get her on her back and yet in the morning she still gets up and cooks you breakfast.
by Len Bakerloo July 7, 2016
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Drinking from a beer bong whilst performing a hand-stand (ie. inverted). It is common for one or two others to hold up/ support the subject being inverted.
Daniel could barely walk straight after his third invert of the night.
by Mike776 January 27, 2011
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A society in which everything works in complete reverse, from what one expected the world to be like as a child, or is that whats called adulthood?
have you noticed some invertism lately?
by Mr. Lay mandeep. May 10, 2017
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