When the planet Mars appears to rotating backwards against the solar orbit. This causes younger males to act in an irrational and perculia way.

They will come prone to insomnia and cancelling plans at a moments notice, which is, often a better option than the standard symptoms of ghosting. (See also fuckboy)

While being a menace to society and possibly responsible for 72-81% of the current gene pool, a Mars in Retrograde is often considered kind hearted, to the point of underdeveloped and puppy like.

Mars Man, a noun is another name for a person that's being extremely boring. But you don't have the confidence to tell them that. Coming from the forgotten, boring Mars Bar and planet Mars.

An avid or obsessive follower of the TV show "Veronica Mars." Even after cancellation, they still participate on forums and write fan-fiction.

Farting into the vagina of an unexpecting wide open legged slut.

Eg. you are sending that rover into mars .. unexpected uncharted territory . They are crazy and you'll never know what to expect so send that rover out boys..

To eat a lot.

The hottest rapper out right now

A person well-known in Hong Kong, who get cheated by his girlfriend