Top definition
the chillest way to abreviate "definitely for sure" I would recommend using it, especially if you're bro.
Guy 1: I want some nattys.

Guy 2: Defs fo sho, bro.

Broseph: I got some dome from that chick the other night. It was chill.
Broski: Defs fo sho.
by So bro, you can't handle it. February 16, 2011
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