Wiktionary
your butts
pron. (context colloquial the first person plural English) you.
Usage examples of "your butts".
Check the pay stubs in your wallets, please, and unless your pay grade is admiral, get your butts back inside.
She used The Dumb-ass Guide to Not Getting Your Butts Kicked to start bringing us into one group.
I even like the idea of us finding them rubber dicks up your butts, you know, just for looks .