Sit On It Meaning
(idiomatic) shove it up your ass (up yours) or back off.
Example: Used other than as an idiom: see sit on,â€Ž sit,â€Ž on,â€Ž it.
The boss said to sit on it and I tend to agree, it is too soon to begin.
Joanie said, "Sit on it, Richie!"