*fat person farts* guy 1: aww, did you see that fat guy rip one? guy 2: yeah, he just had an anal spasm for sure
when a fat person farts and their ass proceeds to shake, rattle, and roll
"*fat person farts* guy 1: aww, did you see that fat guy rip one? guy 2: yeah, he just had an anal spasm for sure" What is the definition of "anal spasm"?