Bantergasm - to have so much banter at one time you complete an orgasm
Haha that was banterous i just had a bantergasm!
by ThaTMaDGuY95 October 30, 2010
When the banter is so intense and it reaches its climax and the banter can no longer continue.
"Insert epic banter" "everyone laughs" "when laughter stops no more banter happens" = bantergasm
by MinisterOfBanterbree January 27, 2016