look up any word, like doxx:
 
1.
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
 
2.
jokin, or lyin
That Boy aint rich hes gassin you
by bakersman February 27, 2004
 
3.
this mean some 1 is chatin shit
i aint got no money

*stop gassin*
by B!GZ M@N & BLITZ KIZZLE August 24, 2006
 
4.
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
 
5.
When your favorite song comes on and you stop what your doing and dance.
Jon: so how was your day sara? sara: shutup im Gassin
by loloolololollollollolooo July 11, 2011