Top definition
1. (noun) - An acronym for Super Mega Ultra Flaming Dragon. A mythical creature with a bad ass reputation for tear shit up and fucking up your day.

2.(verb) - with background of the mythical badass creature this is a saying you say to someone who just got owned, humiliated, or physically maimed
1. Damn, look at SMUFD tearing shit up!

2. HAHA, did you just see that kid get his arm tore off my that tiger? He just got SMUFD!
by OoRah18 July 08, 2011
Get the mug
Get a SMUFD mug for your brother Bob.