The act of deceiving another. An action used for personal gain by lying to someone. If you tell are lie, and they believe you, you are deceiving them; deception.

One who has a mania for music.

Deception is a form of bribery fruad and blackmail

It's when you're doing a chick from behind and before you break off, you spit on her back (thereby 'deceiving' her into you thinking you are done) and then when she turns over, you blast her in the face.

The feeling you feel of reality after watching the movie: Inception.

When crap definition's get published and decent one's do not.

When you get your ass kicked when you are expecting something and it turns out to be the shittiest thing ever.