by Johnny Big Chair May 15, 2014
by La Don October 5, 2006
A Big Johnny is when a girl is being gang-banged by two men; one penis in her mouth and the other in her vagina. If both men come simultaneously, she then pulls the penises out so that they ejaculate on each other's penises.
by Emmzee March 25, 2008
by JOESONFUCKET February 11, 2021