Button Up

To change a subject to avoid an argument.

Alex Polizzi: actually no you need to get ur fucking act together! I’m beginning to get furious!!

Hotel Owner: easy g button up!

Button It Up

Commonly used by older mechanics, specifically ones who work on vehicles other then cars. Meaning to put all the plastics, aesthetics, seats, etc. back together because the job on the vehicle is finished.

"The engine is running"
"Great, button it up!"

button up your lip your ship is sinking

Buttoning up your lip means to quit snitching on your people or yourself for your ship is sinking

Yo rat button up your lip your ship is sinking