butt chills 

Prickly goose bumps in the general rectal area after getting a fecal transplant through an ng tube

This CDiff is killing me but the butt chills feel great.

butt chills by Dontkinkshameme November 23, 2019

Buttchillen

It's a broader term than couch potato. It's not really being lazy but just relaxing, chilling. Doing stuff but not doing anything specific just going with the flow chillen.

Watchin tv waiting for someone to text you? You're buttchillen.

WuBrah: Yo sup let's play Dota, you busy?

Mikey: Nah man just buttchillen, let's play.

Buttchillen by Shuroku June 26, 2012

Buttchill

When you go to sit at your desk as usual upon entering class, but the seat unexpectedly turns out to be at freezing temperatures so your butt goes into a state of shock from the cold.

Ex:

Aiden: (walking normally and begins to plop his ass on his chair) SHIT! Was this chair in a freezer?

Hungry Haroldson: Dude.. I think you've got buttchill.. you should like totally go to the nurse.

Buttchill by chadeesa October 7, 2025