One Up, One Down 

A military slang term that describes when two personnel are posted at a lookout or guard situation. One unit stays alert and awake watching for movement/activity (one up) while the other takes a nap or rests (one down). They alternate so as to be able to extend their alertness for a longer time. It is an unwritten rule that you must wake the resting person if you start to become tired yourself as the "One Up".

"We had 12 hours stuck on that LP/OP behind enemy lines so Smith and I decided to go One Up, One Down. I took Up first."

One Up, One Down by Americ4nBulldog October 31, 2015

knocking one down 

beating df out of your meat .

“ she jus blessed my snapchat, most definitely finna knock one down “

“ aye cat , what took you so long ? “ “ i was knocking one down cuh my bad “

knocking one down by hollywoodmike October 27, 2019

curling one down 

After having sex with a woman, while she is in the bathroom washing, you squat down and shit in her purse. IE curling shit and leaving it in the purse

Whe Im done with sex of any type, I curl a turd down and into the purse or bag of my partner. Curling one down

curling one down by masarasa May 27, 2008

shake one down 

Bristol slang to shake one down is to dance or boogie.

Bobbie likes to shake one down most evenings.

shake one down by Bobbette1 February 6, 2014

laying one down 

to produce excrement
(other slang:
Steam one out
Launch the submarine
Drop the kids off at the pool
Pinch a Loaf
fertilize
move the bowels
stink it up
squat and grunt
revisit food post-digestion
feed mr. flushie
push one through
take a crap
make a shit storm
Clean the poop chute
roll a dirty burrito
making homemade sushi rolls
excrete

I'm about to explode. I gotta lay one down soon, to make room for dinner

laying one down by argo 5 April 29, 2003

roll one down 

v. the act of putting on a condom. this euphemism is often utilized when you hook up with a random chick you meet from a night out on the town

Claude: Dude, that heavy drinking last night robbed me of my dignity! I don't know if i can finish this weekend the right way or not.

Brad: I don't know about you, but I think I'm trying to roll one down tonight.

Claude: Actually, yeah, let me shower so I can wash away this hangover. Count me in on that mission!

roll one down by willie weman May 12, 2007

Curl one down 

Curl one down is when you go for a massive shit!!

oh mate i really need to go and curl one down!

Curl one down by captian bend off September 16, 2009