Top definition
short for "most definitely" (contrary to popular belief it is NOT mo def, and whoever said that is fucking retarded), used because saying most definitely sounds gay and mo defs sounds cool
Kid 1: dude that girl is so hot
Kid 2: most definitely
Kid 1: wtf
Kid 2: Uhh I mean mo defs
Kid 1: true dat
Kid 3: mo def
Kids 1 and 2: ...
Kid 1: shut up dumbass
by disneysucks December 01, 2006
Mug icon

Dirty Sanchez Plush

It does not matter how you do it. It's a Fecal Mustache.

Buy the plush
2
by Alia June 09, 2003
Mug icon

The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

Buy the shirt
3
A shortened version of most definitely. This phrase is best used in drunken converstations and text messaging.
Girl 1: OMG, that girl is totally wasted.
Girl 2: Modef.
by JessiB July 21, 2008
Mug icon

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug