Definitions by Young MLA, the Don

to shit on 

to take advantage of, to manipulate, to insult, to demoralize.

He said you're ugly, he shitted on you.

He stole your sandwich, man, he shitted on you.

He had sex with your girlfriend, how are you going to let him shit on you like that?

to shit on by Young MLA, the Don April 18, 2005