Thunderfap

The art of fapping with rediculous might or strength.

I was totally engrossed in my thunderfap session when my mom walked into the room...how embarassing!

by SallieKatt April 13, 2011

Thunderfap

When your entire body cramps up from a single masturbation session with the most glorious orgasm you've ever had.

Damn dude, I saw some shit so crazy last night I thunderfapped and spent the morning in the ICU

by Marcus Kraulter November 19, 2011

italian thunderfap

the act of fapping so hard while playing super Mario, that it sounds like thunder

Mike: dude, what happened to your arm? did you hit the gym or something?
Mark: nope
Mike: then what?
Mark Italian thunderfap!
Mike: all day everyday!

by Dr. Dro October 7, 2013