keybumpkin 

Giving your buddy a key bump of coke while they are taking a dump

My friend needed a pick me up while he needed to poop so I gave him a keybumpkin.

keybumpkin by Bet_the_Farm October 27, 2023

Kerblumpkin 

When the person receiving a blumpkin drops a huge turd and the person giving the blumpkin gets a huge splash of shit water on the underside of their chin; When the person giving a blumpkin gets water splashed on their face from a dropping or exploding shit.

Kerplunk + Blumpkin = Kerblumpkin

I need to wash this shit water off my face because my boyfriend gave me a gnarly kerblumpkin.

Kerblumpkin by BSleepy June 13, 2010

kerblumpkin 

true love, getting a blowjob while on the toilette

my g/f gave me a kerblumpkin yesterday!

kerblumpkin by UsedCarMan September 11, 2005

kabumpkin

n. the act of defecating on the person performing felatio on you as you cum

As the love nectar cocktail and shit hit her, I knew instantly that this was a successful kabumpkin.

kabumpkin by ghostbuster808 August 6, 2008

Kerblumpkin 

Getting a blowjob/head while standing over the toilet vomiting. Not as regrettable as the variation blumpkin, and easier to accomplish

After a few too many drinks, nausea set in and while vomiting in the bathroom I pulled my pants down to start getting some kerblumpkin. When she was done she told me she loves me.

Kerblumpkin by Pat McKrawch July 27, 2023