Top Definition
That guy in class who always has the fucking answer (@ 8:30 am class)(not necessarily the right answer either)(but loves hearing his own voice regardless). And LOVES IT.
That John Paul in Arabic class, he's a real grinny mcdumbfuck.
by aliens9700 April 28, 2007
5 Words related to Grinny McDumbfuck

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.