see Back-Door Conquistador

The French Astronaut is when a man sticks his balls between a woman's butt cheeks while another sucks his dick.

The act of suicide by putting a plastic bag over your head and duct taping the opening closed around your neck

A person in a relationship who is being used for sex, friendship or comfort without receiving affection or love in return. Often, the non-astronaut food party is in an unhappy relationship.
The term refers to the packets of food astronauts use for nourishment without any taste or satisfaction.
The term comes from the book "You Don't Love Me Yet" by Jonathan Lethem.

A sexual position that can be accomplished only by the most skilled, usually a physician.

A drinking game: On the show Acient Aliens, you drink every time the narrator says "ancient astronaut theorists". If the "ancient astronaut theorist" is from DeVry University, you drink twice.

'astronaut' = his mom was a spaced-out junkie/druggie so the guy or girl was born of a polluted womb, therefore being all f***ed/messed up.

Made famous, however not originated by, the movie "White Men Can't Jump."