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.
The Sweetest Most Delish Tasting Ass Juice From A Young Cambodian, The Best is When It's Freshly Squeezed (also the hardest to find, unless you have a juicer and squeeze it yourself) A Rare Treat, Best Served Chilled with a Splash of Lime