sleeper

A radical, who hides his or her beliefs in order to prevent suspicion from any authority figure; an extreme liberal who pretends to be a conservative, usually for gaining money to fund a revolution.

James Cole believed a schizophrenic person was going to release the virus; it turned out a sleeper did the job.

by Vash Westland August 25, 2003

sleeper

When you know and feel you will have to take a huge and possiblly painful shit later in the day.

"Dude, this sucks man, I've got a sleeper."

by Cascone August 1, 2008

sleeper

one who sleeps

hey look! that sleeper's sleeping.

by yellow fever October 13, 2003

sleeper

To start having sex with somebody while they're asleep.

Mike was laying down on the ottoman so i gave him a sleeper

by Phillip MaCrevice November 30, 2003

Sleeper

A heavy punch delivered that knocks out the opposing side in one hit.

Taylor swift would've thrown an absolute sleeper if her and Kanye actually stepped in the ring.

by Golden Peggy March 22, 2018

Sleeper

A creature, in this case a human, who frats so hard he occasionally (always) falls asleep in whatever frat pose/location he finds himself in.

"Hey check out the sleeper"

"Oh, standard.... Lets take pictures of shit on him, like beer cans, asses, and sorority girls and put them online"

by Mr. Fletcher June 6, 2013

Sleeper

(n) Woman who invites herself into your bed, when morning comes does not leave, does not acknowledge subtle hints to leave, makes herself at home. (Editors Note; Sleepers natural evolutionary path is into Bunny Boilers; when one is encountered it is advisable to cease and desist any and all communication while still possible before life and family jewels are still entact)

"Dirk, where are you? Your late, your going to miss the game"
"Sorry, I am having trouble getting this 'Sleeper' out of my house"

by Dirk Longfellow June 13, 2006