The act of hooking up, fucking, making out etc... but can be much more vague. Seeing a girl's boob pop out in public can be constituted as getting dirt.

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.