noun
plaything; toy; object of amusement
Refers to a person who is treated as a source of entertainment or amusement by others, often with a negative connotation of being used or not taken seriously.
彼はクラスの慰み者にされている。
He is treated as the class plaything.
そんな風に人を慰み者にする
It's not right to treat people as objects of amusement like that.
Compound of 慰み (amusement, pastime) and 者 (person). The exact historical derivation is uncertain, but the word literally means 'amusement person'.