A smaller-than-usual candy bar that usually comes in bags of 20 or so. Usually bought for distribution over Halloween.
by Amelia Q November 15, 2004
by owo bitch May 01, 2019
by Zegeroth September 27, 2007
emily(a short person): hey whats up??
michael(tall person): nothin much. guess what?
emily: what?
michael: your fun sized!
michael(tall person): nothin much. guess what?
emily: what?
michael: your fun sized!
by Mr. Zdawg May 04, 2008
The best way to describe your cock if it's below average and you must divulge the information in an honest way. A favorite with fun sized girls.
by Baird024 October 16, 2016
I know... It's fun size
by funsizeguy December 10, 2010
by heyhiwhat May 12, 2010