Top Definition
n. a combination of a procrastinator and a masturbator; one who puts off doing something out of laziness (such as homework) just so they can masturbate.

v. to postpone something in order to masturbate.

see also horn dog
v. I promasturbated my 20 page exam review in Algebra II assigned by the Devil.

n. Jack is a promasturbator because he skipped 4th period and went home to masturbate.
by Kreapar May 15, 2005
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