When you do something just to be an asshole or for the pettiness of it.
"My bf broke up with me so I put his number in every men's toilets I go in."
"Why?"
"For the shit of it."
To be absolutely demolished in a competition, conversation, or some other form of interaction where someone can make you cry for mommy.
"Dude they absolutely shit on our team tonight!"
Shit is the bad word for poop :)
Dad: Shit!?!
Daughter: Dad! Don’t say bad words!
America, Trump, police, goverment, life
all of those are shit <3