A gerping nub is a person, place, or thing that is gagging while simultaneously burping. And a nub is defined as a small penis or male genitalia. So therefore, when you are sucking a nub you may release a gurp.
Example 1:
Mike: " OMG did you just gurp? WHAAAAAA!"
Olivia: " Yes, you have a fat nub."
Mike: " you didn't have to do me like dat. smh my head."

Example 2:
Mike: " Did you pull a gerping nub?!"
Brooke: " yes, yes I did."
by gerpingnubssonly July 18, 2020
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