A slang term for the word freakin, which, in itself, is a slang word. By itself it means nothing, however, when conjoined with the word awesume, creates a phrase which dictates extreme amounts of cool and awesumness.
Biggie G : Holy crap, dude, did you see that explosion?!?!?!
Lil J : Fa sho, homie, it was FRAKIN AWESUME!