A name for a hotel/hotel room. Commonly used by traveling salesmen or businessmen. Refers to jumping into the hotel bed alone and proceeding to spank off.

to steal one's date, escort, etc.
origin: tv show "How I Met Your Mother"

to steal a girl from a someone that they are trying to hook up with.

When you are flirting up a shawty and then a douche bag comes up and prevents you from motor boating her rack. Also a synonym for cock blocked.

When, upon lifting immense weight on bench press, one becomes incredibility turned on by their accomplishment. A "Rack-n-Jack" participant will then rack their weight and immediately begin masturbating in the gym.

The act of masturbating while in your bed (rack) when you're incarcerated

to steal a girl from a someone that they are trying to hook up with.