[KayakerNC]

From the Urban Dictionary;

reverse peristalsis
n. the act of vomiting. (Peristalsis being the sequence of muscular contractions that moves food down the esophagus, the reverse of which would bring food up the esophagus.)
Sam drank too much. He's in the bathroom engaging in reverse peristalsis.

Urban Dictionary, December 26: christmas fatigues