A type of car guy with a normal, stock looking car (like an everyday person would have), but the performance of it is intense; simply the undercover of the car community.
1. Focus on all go, no show.
2. Hunts down rich douchebags in their supercars, who brags about it being "faster"
3. Modify their car's performance (Turbo, Intake, tires, etc)
4. Be the most unexpected when law enforcement gets included
The imbecile in the Ferrari360 is to late to realize the Volvo 242 with the roaring V8 was a sleeper car
Someone who you assume is just a normal guy because you only see him in hoodies and baggy jeans. Only to find out later when its summer that hes actually jacked as hell.
Friend1: Yo you know Jake?
Friend2: Yeah what about him?
Friend: Bro look at him on the beach.
Friend2: What the hell? Since when was he that jacked?!
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.
A car that looks like a ordinary car on the outside and fast on the inside.
Person 1: I drive a 2001 Honda Civic
Person 2: That isn't fast!
Person 1: That is a sleeper
Person 2: What does sleeper mean
Person 1: A car that looks like an ordinary car on the outside and fast on the inside.