Sea Bumps 

An alternative name for manatees, a.k.a. the speed bumps of the sea

"Ten points if you hit any sea bumps!"

"That's sick Ted."

"Yeah...I gues you're right...I've just not been the same since I got ill and turned that bunga bunga orgy into a scat fest...The horror. The horror."

Sea Bumps by H.S. Willsy August 25, 2011

Bumper

A rolled cigarette made using the leftover tobacco from other unfinished cigarettes.
Unlike other definitions here, this is actually used in the real world.
Australian origin.

Unemplyed guy 1: Fuck I'm outta ciggies cunt!

Unemployed guy 2: Shit, we'll have to roll a bumper.

Bumper by Dickhead Savant November 28, 2014

Bumper

(Verb) “To Bumper one’s crypto” - A boss move of absolute brilliance where a savvy crypto holder uses the Bumper protocol to shield their tokens from the unpredictable swings of downside volatility.

Derived from the innovative DeFi protocol, this action combines technological prowess with financial wizardry, offering a safety net in the roller-coaster world of cryptocurrencies.

“Dude, I just Bumpered my whole stash of ETH. I ain’t afraid of no bears…”

Bumper by Pope_of_defi July 3, 2023

bumpty bumpty 

To fuck,pelvic peanuckle,sex

my gilrfriend broke up with me and no longer do we do bumpty bumpty

bumpty bumpty by Patrick from Atown November 13, 2006

Bumpster

A person that you are not sure is homeless or a hipster.

"Wait, is that guy homeless or a hipster?"

"Neither, he's a bumpster."

Bumpster by Smorpheus July 13, 2012

Bumper cars 

When two guy smash their cocks together until the other busts

Bumper cars

Bumper cars by Jeff5362874 October 7, 2020

peenjo bumping 

When two men or more engage in Double Penetration Sex in a woman, in the same hole, and their penises rub up against each other. It might as well be considered tummy sticks.

Peenjo Bumping is all the rage in "straight" DP porn these days.

peenjo bumping by th December 2, 2007