Top Definition
Secks between a normal-sized person and a midget.
A twosome would involve two normal-sized people, so therefore a one-and-a-halfsome would involve a normal-sized person and a person half the size of a normal person, or a midget.
#midgets #secks #twosome #threesome #moobs
by Taco Monkey December 26, 2006
5 Words related to one-and-a-halfsome
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