look up anything, like your first name:
1. pipe down
basically telling someone to shut up.
"hey you over there, pipe down"
by anonymous Jul 6, 2003 add a video
2. 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!
by martini Feb 3, 2005 add a video
3. Pipe Down
A uncomplicated and cutting expression, which plainly means "Shut the Fuck Up"
"My fiancee is demanding I go to bed before 12"

"Tell the bitch to pipe down..."
4. pipe down
v. to have sexual intercourse with a female
I piped down this chick last night for three hours.
by Nautilus Feb 16, 2005 add a video
5. pipe down
To fuck another person. This is a spin of lay the pipe, but in a much more poignant manner.
I was piping down this bitch last night when, all of a sudden, her roommate walked into the room. Then I piped her down too.
by Nautilus Jan 25, 2005 add a video
rss and gcal