when a hooker gets pissed of at a male client and decides while giving her male client a B.J. to bite one or both of his nuts till they pop
Male client- "yeah u fuckin slut suck it, suck it!"
Hooker- " what did you just call me?"
Male client- " look dont stop keep with the sucking!"
Hooker- " fine"
so she proceeds to suck till when he's about to blow his load, and she bites his nuts till they pop.
Hence a Nut poper