Sleeper

A part of the cab or an attachment to a semi-truck often used for loads that travel a far distance. The sleeper contains one or two beds that are of decent comfort (in my opinion) especially with blankets. For two-person trucks, there is usually a bunk bed so that you and your passenger can sleep.

Driver: "We only have an hour left, we need to go to the sleeper"
Passenger: "Ok."

by trhsrthsrh April 7, 2021

Sleeper’s high

Reaching a certain point of tiredness where you are no longer tired and or cannot fall asleep

I was gonna go to sleep early last night but I hit my sleeper’s high

by Doughyface April 15, 2021

Sleeper cell

When a based and red-pilled gamer has to control their power level, so that the unwashed masses don't start noticing anything.

SUSAN: Hey Mark, what do you think of BLM? They really help amplify the voices within marginalised communities, don't they?

MARK (Sleeper cell): Yes, love em!

by Buck Destroyer June 3, 2021

sleeper fatty

When a woman appears to have a normal sized backside but when you see her without clothes it’s huge

Damn I didn’t realize my new girlfriend had a sleeper fatty!

by anonymous December 9, 2024

Sleeper fatty

aka night boner

I had the horniest dream! I woke up and had a total sleeper fatty!

by Bagman_3k December 12, 2024

Sleeper booty

A girls butt that doesn't look good in most types of pants , however when the pants come off , or she wears tight yoga pants and similar pants her ass looks great. Like a sleeper agent Activates by a trigger for their mission, allowing them to transition from their "dormant" state to active. The sleeper booty is dormant until it she Activates it by making a choice to let those beautiful cheeks be seen in all their glory.

Damn baby your ass looks great in those! I didn't realize you had a been working with a sleeper booty.

by Goldgenfox January 15, 2025

sleeper fashionista

A person whose clothing rotation is typically mediocre at best, but during a formal event or other special occasion bust out such an elaborate outfit you would think they usually had better taste.

Damn, I didn’t think Derek could look that good! Doesn’t he usually wear plain t-shirts?

Yeah, he must be a sleeper fashionista.

by psuedofederal October 19, 2025