bellywonkers 

Undergarments, most likely belonging to a homosexual European

Don’t get your bellywonkers in a wad

bellywonkers by Raquees June 7, 2021

Bellybonker 

when someone engages in the act of sex, thrusting deep and hard, therefore bonking the stomach.

Example 1; wow andrew, sex was amazing lastnight, you totally bellybonked me!

Example 2; gee ken, that felt so good, your such a bellybonker!

Bellybonker by Dr. Love69 November 19, 2011