look up any word, like swag:
 
1.
Someone who is a pervert. It refers to someone who is always erected when he sees girls. (or boys)

It can also be used as a verb..
projin' : having an erection
OMG, that guy over there at the bar is such a proje!

Look! That guy walking towards us is projin'.
by krisdunc October 20, 2010