One of the many degrees of mood murder. If one is not intentionally trying to ruin someone's mood but manages to do so anyway with a stupid remark or a lame joke he is said to have committed involuntary moodslaughter.
Guy #1: Dude that dig about vegetarians was mood murder. you know my girlfriend is vegan.....

Guy #2: I had no idea she was sitting there. It was involuntary moodslaughter at best.......
by reddKarun July 22, 2010

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from daily@urbandictionary.com. We'll never spam you.

×