bootknock 

Ass, booty, particularly a female's.

Barry "Damn, look at that ass!"

Brandon "That bootknock's got some flavor for you, eh?"

bootknock by Neo June 15, 2003

Bootknock 

It is the stench on your butt crack , hole ,and taint area from sweat and improper wiping, and lack of hygiene .

Why don't you take a shower .you stink of Bootknock. Gross

Bootknock by Neckbone98 August 1, 2021

buttknocker 

One of the dozens of slang terms used by Beavis and Butt-head. Buttknocker could refer to
a)A homosexual, as anal sex is the only form of intercourse for gay men, or
b)An erection in somebody's ass, referring to pulling out and then tapping and wiping the semen on said ass.

Beavis: Shut up, Butt-head! I'm gonna play drums on your nads with my foot!
Butt-head: I'd like to see you try, buttknocker!
Beavis: Don't call me that, Butt-head! (Beavis kicks Butt-head in the testicles)

buttknocker by dilary huff April 24, 2008

Buttknocker 

1.) Term made popular by Beavis and Butthead.

2.) One who exists to knock on ass. Arguably an accusation of homosexuality.

Beavis: Heheheh, move bunghole!
Butthead: Uh, shut up buttknocker! Uhuhuhuh.

Buttknocker by C2Y October 4, 2005

Bootneck

A Royal Marines Commando.

The name comes from the old style Royal Marines uniform, which had a leather neck collar.

USMC can't get the job done? Send in the Bootnecks.

Bootneck by ChurchBlack January 22, 2013

Bootyrocket 

when people get high by sticking meth or crack up their ass

He went from smoking meth out of a lightbulb to doing BootyRockets

Bootyrocket by TheSneakyNeighbor April 13, 2017

bootneck

Royal Marine (British Special Forces). Known to each other as "Royal" but the rest of the British Forces know them as bootnecks. This nickname is derived from them cutting the top from a leather boot and wearing it like a modern neckbrace to stop sailors cutting their throat while they guarded officers on board British sailing ships in the days of old.

"Don't anoy those Bootnecks over there unless you want to wake up with a crowd round you!"

bootneck by Smudge Smith April 28, 2006