at your service mod:
A euphemism is a 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. The deployment of euphemisms is a central aspect within the public application of political correctness.
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 amuse.