Euphemism is the substitution of an agreeable or less offensive
expression in place of one that may offend or suggest something unpleasant to the
listener;[1] or in the case of doublespeak, to make it less troublesome for the
speaker.[citation needed] It also may be a substitution of a description of something or
someone rather than the name, to avoid revealing secret, holy, or sacred names to the
uninitiated, or to obscure the identity of the subject of a conversation from potential
eavesdroppers. Some euphemisms are intended to be funny.
from Wikipedia
a commonly
used term used to express a certain idea without bluntly declaring that idea)
Ex: He kicked the bucket
Ex: "If any of you so much as thinks the word 'parlay', I'll have your guts for garters."
- Pirates of the Carribean.
Assisted by Leigh Averett