Pulling a billy is the Inability to ejaculate. It is an embaressing predecession as it is unhelpful with the pleasuring of the female species.

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.

Pulling a billy is when you spell a word incorrectly or do not punctuate it. To save yourself from complete shame you say something along the lines of "oh SH** i just pulled a billy".
The name billy is used for this phrase, because recent studies show that if you have the name "billy" you are 4% more likely to have difficulties with spelling than with any other name. This study also showed that the average I.Q. for someone called billy was just 12, 8 lower than the 2nd lowest, Andrew.

'Pulling a billy' is to not attend an event, usually blamed on a family event e.g. 'sister's birthday' or a family outing e.g. 'the borough market' The same excuse is typically re-used over and over.