camp butt
After you go swimming and you put your pants on over your wet bathing suit and you sit down on the ground and you have dirt and stuff all over your ass.
Eew, look at that girl. She must be a serious swimmer because she has a bad case of camp butt.
Butt Camping
When you pitch a tent in someone’s ass over night.
Yeah, I think Craig and Zach went butt camping this weekend.