1 definition by mechristof

Top Definition
Stands for "This Is Really Funny". You use it when you find something really funny. Used by people who are sick of hearing and using lol.
Man: Oh man tirf!
Man: Oh man that's tirf!
by mechristof September 03, 2005

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from daily@urbandictionary.com. We'll never spam you.