v. （使）行为不端；举止失礼，不礼貌；（机器）出现问题（misbehave 的现在分词形式）

Misbehave \Mis`be*have"\, v. t. & i. [imp. & p. p. {Misbehaved};
p. pr. & vb. n. {Misbehaving}.]
To behave ill; to conduct one's self improperly; -- often
used with a reciprocal pronoun.