The act of two or more people spending time together, aka "hanging out"
"Hey wanna chill butts tonight?" "Yea that sounds good, what you wanna do?"
Working up an erection, sticking it in a dudes ass and chilling, preferably while watching a movie. This act is not gay, as thrusting is strictly forbidden. Rule of thumb: Pumping=gay, Chilling=cool
Nothing beats driving down a bumpy road while butt chilling so you can sneak in a few no homo thrusts.
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.
being in bytt
example: the scene in expiration date when the scout and miss pauling are in the bread guy and the green smoke (fard) is near them. they are chilling at butt