A male that masturbates for extended periods of time.
That little cumpuppy has been in his room all night!
by txcumpuppy June 10, 2013
A young boy usually 9 to 14 who's body has just reached the stage of functional reproduction. The ability to reproduce is unknown to that person or anyone else. Accidental pregnancies came occur at this age very easily because of lack of knowledge of potency.
Did you hear about Cody's little brother? I guess the little cumpuppy got a girl pregnant.
by Guido1 March 4, 2008
A cumpuppy is a young guy who likes to suck dick and be fucked in his boy-hole.
My cadet roomie, Matt, calls me his little cumpuppy!
by USAF Cadet November 3, 2020