nerd: dude that hot girl just gave me an instarection! she didnt even touch my penis and i sprayed my load before i even got it up!
shane: ... you're a lil bitch
shane: ... you're a lil bitch
by Jake Seaton February 19, 2008
To get an immediate erection from a lovely specimen of the opposite (or same) sex (whatever floats your boat).
by Troy April 24, 2007