When you're puke drunk and making out with someone then you vomit uncontrollably into their mouth.

Anatidaephobia is defined as a pervasive, irrational fear that one is being watched by a duck. The anatidaephobic individual fears that no matter where they are or what they are doing, a duck watches.

Anatidaephobia is derived from the Greek word "anatidae", meaning ducks, geese or swans and "phobos" meaning fear.

A person who you are not in a relationship with but could always have the ability of being in a relationship. Much like astronaut food that person will never go stale or tired of waiting for their love to be requited.

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.