What is Jeffing?
1.
To squeeze puffs of air out of your enormous man boobs to mimic flatulence.
When I told my brother that it was my turn to play World of Warcraft, he started jeffing at me and told me to go away.
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2.
Doing something that is out of the realm of normal human stupidity. See also
"So I'm doing this Polish chick, right. All of a sudden I get this notion that slamming a vase over her head would be sweet. Ya know, like a
donkey punch , except with a vase. Long story short, she filed a lawsuit against me for "assault" and "battery." I didn't hit her with a battery. It was a vase! Stupid court."
-"Dude, you were jeffing then, and you are jeffing now. Get away from me."
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3.
section 8 slang- means "swingin on these nuts" or kissing ass.
you strait jeffin' my nigga- keep yo stupid tricks in tha traila.