1 definition by the def person
when you quickly extend your arm inward, stretching the skin apart on your elbow, making it hard and boner-like.
Zack: dude, I reached up really fast to slap the bug off my shoulder, and everybody saw my wenis boner!
me: dang, dude was it bad
zack: it was all dirty from being outside
me: dang, dude was it bad
zack: it was all dirty from being outside
by the def person February 22, 2008