nill your chuts

A switching of the first letter sounds in the first and last words of "chill your nuts."

Used to tell someone to calm down. Also it is in the same class as nill your chipples.

Late Guy: "I'm gonna be late for that concert!"
Instigator: "Your mom was late after I was through with her."
Late Guy: (ALL CAPS RAGE) "RAAAAAWGGGGHHHHHHH!!!!!!"
Instigator: "Dude, nill your chuts!"