Abbreviation for That Is Really Funny (it's the new "lol"). It can also be used as an adjective to describe something funny, and when people ask what it means, you tell them, and then they say it doesn't make sense, and then you say to yourself: tirf.
by -dH- August 30, 2005
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.
by mechristof September 03, 2005
A thick girl, with beautiful eyes and amazing dark skin, her scream is incredibly loud! she hates animals but loves them!
by Tirfe August 27, 2020