What is Fuckin?
1.
A stall tactic used like "uhh" usually when someone who is high and can't think of the correct word to say.
Fuckin, I don't know bro.
2.
another way of sayin "uhh"
fuckin..that guy is hella stupid
See
3.
bustin a quick nut
john sure was good at fuckin
4.
dun by 2 dogs....