Top Definition
the necessity of trying a proposal out fully before writing it off as a shit idea
tom: hey man, lets play the chorus in F sharp man

jason: wtf? that'll sound like your mum dude, no way!

tom: F sharp principle mofo
by bl4gg3r March 19, 2013
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.