During Anal sex the party giving will ejaculate in the other. When the party receiving has their orgasm and the semen drains from their hiney that's an "Assgasm".
"Dude, i fucked Courtney so hard last night, she had an Assgasm!"
"Hey that happened to me and George!"
"What the fuck?!"
"Hey that happened to me and George!"
"What the fuck?!"
by SprinkleTits01 August 05, 2011