Top Definition
An extreme slip of the tongue resulting in a crazy new word and much hilarity.

A game can be played among friends, when a squarefagadoo occurs, the first person to shout out squarefagadoo gets a point.
squarefagadoo is in itself a squarefagadoo. Resulting from someone trying to say "Square cylinder"
by GilyGilpin October 31, 2010

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.