the act of cuming in a girls asshole and then eating her asshole out afterwards and in the process you accidently swallow a cum load of your own seamen
levi: ryan i seriously cant believe you had sex with stuphanies rat infested qwatch, why would you do that to your self?
When you have wild, destructive sex with someone you don't give two fucks about.
Stan: Dude, Joe's shit is getting out of hand man.
Rick: What happened??
Stan: Joe has been hooking up with some "questionable" people lately.
Rick: Oh yeah, he's becoming a Cumikaze.
Stan: A Cum-ah-what???
Rick: A Cumikaze, he obviously doesn't give a fuck about the women he sleeps with, he has become a Cumikaze sex addict.
After having sex with protection, swinging your condom David and Goliath style into your partner's face.
Guy: Ahhhhh.... (Or Horse Whinny)
Girl: That was Amazing!...Uhh... what are you doing with th... *Splash*
Guy: LoL
Girl: Oww Wtf was that for?!?!?!
Guy: What It was Just a cumikaze!