noun
laughingstock; butt of jokes; object of ridicule
Refers to a person who is constantly teased, mocked, or made fun of by others. Often used in social or group contexts.
彼はクラスの嬲り者になっている。
He has become the laughingstock of the class.
そんなことを言うと、みんなの嬲り者になるよ。
If you say things like that, you'll become the butt of everyone's jokes.
Compound of 嬲り (なぶり, the continuative form of 嬲る 'to tease, torment') and 者 (もの 'person'). The verb 嬲る is of uncertain origin, possibly related to なぶる (to make fun of).