The process of a male ejaculating inside another persons anus(female or male), and the recipient proceeding to use their intestinal track and esophagus to vomit the "load" out of their mouth
"Did you see that? Ronda totally just took that load and performed reverse regurgitation out of her mouth!!"
by Big Tom the Adam Bomb November 12, 2011
Eating something that tastes really bad.
Eating those wraps was like pure reverse regurgitation.
by Batli January 16, 2008