Top Definition
One who excels at being a killjoy.
A: Wanna hit off my joint?
B: That stuff is bad for you and is illegal... You're just enabling criminals and hurting yourself. Now I have to call the police.
A: You're a master joy assassin, you know that?

A: Ain't life grand?
B: Sure... 'Till you get old, see your family and friends die, your own health fails and it's all over. We leave this world alone.
A: Joy Assassin!

A: Are we having fun yet?
B: When I was seven years old, my priest touched me.
A: Joy Assassin!

A: Look at the cute puppy in the window!
B: Dogs are predators. Given the chance, they would eat those bunnies over there. Is that cute?
A: Joy Assassin!
by youdbesolucktoknowme October 07, 2009
5 Words related to Joy Assassin

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