Exaggerating something
"Shutup bro your gassin it so hard."
by Wallah_Asap January 3, 2016
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jokin, or lyin
That Boy aint rich hes gassin you
by bakersman February 27, 2004
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Gassin means lying, possibly joking.
It has replaced the previous word air.
Why you gassin, you never boned her!
by Tili_____1 September 24, 2009
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1. when someone is spittin fire, dope raps.

2. when you firing a weapon, usually an automatic weapon or a choppa

These are Bay Area definitions
You hear dat track by DB Tha General dat boy was gassin on dat bitch.

When I see dem niggas, ima start gassin fuck these niggas. All dem niggas finna get knocked down.
by GAS NATION January 10, 2010
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1. A fast rapping rapper spitting all facts.
That new rapper Young Brayzen be gassin' in the booth!
by Brayzen1800 June 12, 2019
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where a group of people cheer on a certain person
the teachers were gassin the talent show
by princessangelz March 27, 2020
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