Kerplunk 

When your well endowed and it hits the toilet water.

When I was taking a crap and yup "Kerplunk".

Kerplunk by Willy_d_ March 25, 2017

Kerplunk 

When a mans dick smoothly goes into a vagina very fast.

My dick went kerplunk into Rebecca’s pussy.

Kerplunk by BoiClapper52 October 24, 2018

Kerplunk 

The sound my shit makes hitting the water of the toilet after I had fifteen beef sandwiches.

"I HAD TOO MUCH FOOD- kerplunk!"

Kerplunk by Jarpz November 28, 2020

kerplunk 

this is when a guy is taking a piss while getting a rim job. as opposed to a plumpkin which is a BJ whilst taking a shit.

bob was peeing in the woods when susan came right up behind him & began eating his hairy ass out, aka a kerplunk.

kerplunk by seaseperating January 24, 2022

Kerplunk 

A Green Day album with amazing songs such as Dominated Love Slave by Tre Cool and Christie Road. The reason the name was given is because Kerplunk is the sound a dookie makes when it lands in the toilet.

Kerplunk! 💩

Kerplunk by UltimateDoge May 12, 2022

Kerplunk 

an act of trolling, pranking, or playing a trick on someone unsuspecting or specifically deserving

I think he deserves a kerplunk.

Kerplunk by theworldisoursnotyours September 5, 2024

Ass Kerplunk 

When you fill your ass with ball bearings, and then your friends, or work colleagues if your in the office take turns to kidney punch you. For every ball that comes out you get a point, person with the most points wins. If a follow through occurs, the game is re-started.

Anyone for ass kerplunk, i got some malteasers left over from christmas...

Ass Kerplunk by Greg 'Ol', Bailey January 24, 2008