Overly crowded, hot, humid, sweaty, uncomfortable rubbing against people. Often used to describe social events including but not limited to: clubs, bars, partys, the gym, etc.
James: "wanna head to club dub tonight?"
Nick: "Nah, I hear its mushy tonight, lets head to Absinthe and dance"
The term used for the intentional rubbing up against or touching of another, usually unsuspecting, person for the purpose of sexual arousal. This is usually done in a crowded place, such as the subway, supermarket, or gym. This can be considered a crime in most situations. The term frotteur is the French noun literally meaning "rubber" or "one who rubs." See dirtymedicalwords.com for more information
Eww....i think that guy just rubbed his junk up against me! He must have frotteurism!