A drawing of a penis in another persons school book that is drawn far through the book so that it is designed to be found and cause shock weeks or months after it is drawn, much like a sleeper agent.
by The Magi Carpy May 17, 2015

The act of smoking bud before going to bed. This will give the smoker a strong mid night snack appetite and a long and satisfying sleep.
Yo dude, you wanna meet up for a sleeper creeper, I need to get a really good night of sleep tonight.
by Maba February 1, 2007

this happens when you stay the night at someone's house, and the next morning while in the shower; you accidently cum on the louffa hanging from the faucet.
by 1/2RICAN November 11, 2009

This type of ring is made of sterling silver or metal. Worn for one purpose only, to knock people out. Normally worn on the middle finger of both hands.
by tylerthetiger October 21, 2010

by Mister Bum February 21, 2009

The act of ejaculating onto/into your partners pilliowcase. Then when your partner wakes up the next morning your invisible ink has dried, leaving a white film on the pillowcase.
The reason its the "Seattle" Sleeper is because the city always gets a light dusting of snow that you can only really see in the morning.
The reason its the "Seattle" Sleeper is because the city always gets a light dusting of snow that you can only really see in the morning.
I woke up and my partner had left a Seattle Sleeper on my pillow, it took a little more effort than usual to pull my face away.
by Shakes,Chewy, and Triple TTT May 30, 2009

sleeper car /slēpər kär/ (noun): A chick that looks like a prude and seems shy, but as soon as she has a few drinks or you get her alone, she's up on in!
Dude 1: "Man, that chick I met at the library last night was a free-eak!"
Dude 2: "The chick in the frumpy brown sweater?"
Dude 1: "Total sleeper car, bro."
Dude 2: "Nice!"
Dude 2: "The chick in the frumpy brown sweater?"
Dude 1: "Total sleeper car, bro."
Dude 2: "Nice!"
by Melba_Toast July 28, 2011
