Fuck your shit up

1) To beat up
2) To talk out of doing something; To discourage

1) I’m gonna fuck your shit up!

2) Don’t let other people fuck your shit up.

shut the fucking shit up

“shut the fucking shit up” is a phrase that basically means “shut the fuck up” (refer to shut the fuck up) but with more emphasis on the “fuck” part.

person 1: LALALALA I CANT HEAR YOU LALALALALA

person 2: shut the fucking shit up

person 1: >:(