Ass sticking 

The act of putting chopsticks up someone’s ass

Greg: I ended up ass sticking Stacy last night

David: Good for you knobhead

Ass sticking by DockedDickMan November 5, 2020

Try sticking your head up your ass 

One of the greatest insults in cinema history; Insult used by Scarface when he’s about to be chsinsawed.

Scarface: Why don’t you try sticking your head up your ass? See if it fits.

Try sticking your head up your ass by SiL3Nt J September 30, 2023