Improper is an adjective; it refers to conduct which is not in accordance with accepted standards, especially of morality or honesty. It can also mean behaviour lacking in modesty and decency.
Some Americans think that Donald Trump’s behaviour is improper.
The behaviour of Malcolms is improper.
by AKACroatalin March 01, 2017
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noun; Improper respect. In reference to props; Inadequate recognition of stature.
"Stolling through the 'hood after winning the lottery, I found myself receiving improps from the locals."
"This broad gave me improps!"
by P. Woo November 07, 2003
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When a girl's breasts are bigger than her bum, she is susceptible to the insult of being an improper fraction.
Hey, see Veronica over there? She's a real improper fraction.
by RoyceTarantino December 19, 2019
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A maths-based joke that refers to working towards, but not completely achieving, getting a root. It is essentially a failed attempt to tune or woo a female.
1. "Nah look... I didn't actually root her. It was more of an improper root."

"So nothing happened then."

"Uh... nah, we just chatted."
2. "Old mate Will got an improper root last night."
by YaBoiMattyMC September 10, 2017
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a dumpling that shows up where it doesn't belong...
did you see that wee mad improper dumpling that just appeared in ma tomato soup...
by theeimproperdumplin December 02, 2010
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A woman who has big breasts and no ass. A woman who is large at the top and small at the bottom.
"You have 36DDs and you wear a size 4 with no ass. You are an improper fraction"
by TUNE15 September 12, 2006
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A couple where the woman is larger than the man, either in height or weight.
Dave: Do you see that couple over there? She's enormous and he's thin as a rail.
Bob: Yeah, I always feel bad for guys in an improper fraction.
by maf54 May 05, 2010
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