When having anal sex typically from the doggy style position, once a penis is removed the 'catcher' undergoes a potentially involuntary (but sometimes not) rectal contraction and a gaseous release occurs of the flatulent hitting directly into the nostrils of the 'pitcher'.

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 sexual act in which a frozen turd of substantial length and girth is inserted into the partners anus freezing their anal cavity. The Turd is removed and and anal sex commences providing a cold, almost icy canal and the sensation much like fucking a chimney that could be found in the Himalayas.