A fork of Rural Dictionary
The term gassed when associated with someone else, can mean they are full of sh*t. On the other hand, the term gassing can be used in the context where someone states that whatever the other person is saying is a total lie.
Person 1: 'You are so Gassed' Or Person 1: 'Quit Gassing' Person 2: I'm serious! Gassed, Gassing.