The act of giving someone a surprise enema while they are standing up. The victim must then remain as still as a statue - any movement will liberate the contents of their colon.
Person 1: Yo you know Shaniqua over there?
Person 2: Yeah she's my sister, why?
Person 1: Oh shit haha I took her to Pride Rock and we tried the Slovakian Jack and Jill last night.
Person 2: That's my sister what the fuck is wrong with you?!?!?!