pipe down

basically telling someone to shut up.
“hey you over there, pipe down”
a uncomplicated and cutting expression, which plainly means “shut the f-ck up”
“my fiancee is demanding i go to bed before 12”

“tell the b-tch to pipe down…”
originally a naval expression. it means stop talking and be quiet. the pipe down was the last signal from the bosun’s pipe each day which meant “lights out” and “silence”.
you better pipe down when she’s talking to you!
verb. to lower one’s voice; to stop yelling, whining, complaining, etc. to partake of marijuana utilizing a pipe or bowl.
1. “pipe down over there! we’ve heard enough of your b-tching and complaining all f-cking day today.”
2. “you kids better pipe down, or else when your father gets done with his phone call, he’s gonna be whooping some little -sses!”
3. “hey bro, meet us behind the shed in like 30 minutes man…..me and mike are gonna ‘pipe down’ on some cronic dude ….”
to f-ck another person. this is a spin of lay the pipe, but in a much more poignant manner.
i was piping down this b-tch last night when, all of a sudden, her roommate walked into the room. then i piped her down too.
v. to have s-xual intercourse with a female
i piped down this chick last night for three hours.