#1
Just post a word and the user below you will post YOUR definition of the word, it can be the actual definition if you want.
Eg
User1: This Thread
User2: FAIL

I'll start
fap
#2
Masturbate.

Floccinaucinihilipilification
Play the man, Master Ridley; we shall this day light such a candle, by God's grace, in England, as I trust shall never be put out.