What is Koffing?
1.
A Pokemon that is full of poisonous gases and spews them out in battle.
Jessie; Go Ekans
James; Go Koffing
2.
The most unexpecting thing to yell out in a group conversation
guy1: so how you guys doing?
guy2: good, but anyways how about that Sally bitch eh?
guy3: shes a bitch, i totally wanna--
guy4: KOFFING!
See
3.
Referring to an awkward situation.
You walked in on your sister having sex?
Yeah it was totally koffing.
4.
The best thing ever.
Koffing gassed the Jews, everyone loves Koffing!