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?
ryan: thats not even the worst part!
levi: why what else happened?
ryan: because her vaj smelt like a homeless shelter, i decided to jam her ass clam.
levi: that sounds chill.
ryan: and then i ate her butthole out and swallowed a metric full of butt crust and seamen.
levi: that sounds not chill, kamikazes usually arent
It is when you are in the backseat of a car and throw up into the pouchon the back of the driver's or front passenger's seat and then smack it, sending bile-filled vomit all throughout the cabin.
"Dude, why is Pepe pissed at you"
"I was hammered last nightin the back of Don Pepe's car so when I had to vom I gave him a Backseat KamiKaze."