knucklebumped a floater 

when one's aggressive ass-wiping causes him or her to forcefully strike the chocolaty log within the toilet bowl.

i was taking a behemoth dump on my break before i looked at my phone and saw that i had only one minute 'til punch in time. i was wiping so aggressively/quickly that i, accidentally, knucklebumped a floater.

knucklebumped a floater by todd beanfeather February 24, 2009

Knucklebob 

Fingering your bootyhole or the bootyhole of another with your middle finger up to the third knuckle.

Beth was squirming last night when I did a little knucklebob.

I can’t shit today. I knucklebobbed myself last night.

Knucklebob by Eaton Holgoode October 6, 2017

knuckle boom 

A method of vaginal stimulation involving a clenched fist and a bucket of lube.

I have her the ole knuckle boom last night. She came almost immediately!

knuckle boom by RammWolf April 18, 2017

knucklebone 

Another word for fisting

Jeff: Maria has let every guy in our grade knucklebone her

George: What a slut

knucklebone by LeManssssssss3 October 15, 2014

Knucklebomb 

Anal Fisting

Sebastian could really feel Tristan's fist in his ass. As he came, he thought this was the best knucklebomb he ever had.

Knucklebomb by Fnspidey August 31, 2017

knucklebump 

herion

knucklebump all up in this whoa!

knucklebump by faggymcfaggerton November 26, 2010

Knuckleboarding 

A term for the action of accidentally dragging your knuckles across the top of the toilet water after leaving a poop.

The bathroom had a small toilet in it so when I went to wipe I made a few waves while I was knuckleboarding.

Knuckleboarding by Lyrlyrplnts4hire February 21, 2019