Kill my ass 

(1 An exclamation commonly used to convey extreme annoyance and/or frustration at ones current situation

(2 A term used during anal sex to convey wanting to be fucked up the ass harder, presumably until the participant's ass is in pain or "destroyed"

In the first context, the term is not meant to be taken literally or to show actual sexual attraction.

In general, the term kill my ass seems to have originated from the similar terms fuck me and fuckmeuptheass.

Kill my ass!!! The bridge is closed and now I'll never get to work on time!

Kill my ass by phandaya May 27, 2017

Well slap my ass and tickle my pickle, I'm going to kill myself! 

When you are completely roasted toasted and caught by surprise. A term you should not often use as you should always have an ace in your hole. Hopefully, when you do use this term, those around you will be so completely and utterly destroyed both physically, mentally, and spiritually that they'll bow down and worship you.

Teacher: "Did you say further? Further means more and you can't be even more of more; the proper term is 'farther!'"
You, me, or any enlightened child: "Well slap my ass and tickle my pickle, I'm going to kill myself!"

Thicc Boi: "WHO GOES NEXT? If he's on my left and he's on my right, WHOSE IN THE MIDDLE??
Enlightened one: "Well slap my ass and tickle my pickle he's got more chromosomes than me!"

Well slap my ass and tickle my pickle, I'm going to kill myself! by ExcitedTea December 19, 2018