Throwing Chairs 

to talk trash about a friend or aquaintance, to publicly denounce or disrespect. When throwing shade it's immediately obvious to on-lookers that the thrower, and not the throwee, is the bitcy, uncool one.

"Jon, are you throwing chairs?"

Throwing Chairs by Contextyo'know December 4, 2017

Chair throwing stupid 

Someone who is so stupid they make you want to throw a chair or another nearby heavy object.

I was in a rage after having to work with Scott because he is chair throwing stupid.

Chair throwing stupid by schwammy January 20, 2011