Top Definition
A guy or gal who lurks around your boyfriend/girlfriend and serves as a stand-by fuck when you two aren't together.
Wow dude, that Chris Lucero is a real stand by fuck - he fucks your girl every time you guys have a fight.
by believergeliever June 30, 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.