Top Definition
The act of being so pumped and or ready so somthing awesome that you get an overwhemling sense of happiness and joy like an orgasm
Hey Marvin last night I had a pumpgasm thinking about the fun were going to have
by riglyyyy June 18, 2011
Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from We'll never spam you.