What is Biffing?
1.
to kid arond, to joke, just messing wit someone.
whyd you do that man your so fucking gay!
what?
yo man i was just biffing!
2.
Pissing, shitting, throwing up, having a bloody nose, and crying. All at the same time.
We were doing the All American Challenge and I started biffing and my team won!
See
3.
To be baffled whilst under the influence of ketamine
"I'm biffing hard"
See
4.
The act of sex with a spina bifida sufferer.
"I was biffing this bitch, she was coughing shit up everywhere, like bits of her lungs ands shit."