Noun form = illegitimate behavior
Verb form = typically accompanied with the word "throw" or "throwing," as in to "throw someone shade" meaning to act shady, fake, or funny around or towards them.
Person 2: Shade!
My man been throwing me shade because I haven't been around as much.
2. (adjective) a word used to describe an act that is mean, deceiving, or otherwise messed up, or "shady." it is basically a derivative of the word shady when used as an adjective.
2. What?! your taking your girl to the game but not me?! You said that you and me were gonna go a month ago when you bought the tickets! That's shades!