Umpf’

A way to say you will point a gun to someone most likely their head

“Oi nigga im gonna umpf’ this at yo face”
Other guy
“Oh shit!”

L

Someone who is lame or “not cool” according to what someone has done or said.

Person 1:”your ment to put milk then cereal”
Person2:”eww no your en L”
Person 1: is now sad

Racks

Money, mostly thosands of dollars

Person 1:“Yeah i got 40 racks lets go bro”
Person 2: “thats sick my nigga!”