English Dictionary

have a screw loose

動詞

俗語

(slang) To be insane, irrational, or eccentric.

日本語の意味

正気ではない、気が変わっている / 常軌を逸している、精神が不安定 / おかしな、風変わりな

When he started claiming the traffic lights were signaling just for him, people in the office whispered that he must have a screw loose.

彼が信号機が自分にだけ合図していると言い始めると、職場の人たちは彼は正気ではないのではないかとささやき始めた。

意味（1）

(slang) To be insane, irrational, or eccentric.

Richard, glorious in new livery, … went with his sad message, first to the church and then to the banqueting-hall in Albemarle Street. Not any wedding? said the head-waiter at the hotel. I knew they was folks as would have a screw loose somewheres. …

has a screw loose （ present singular third-person ）

having a screw loose （ participle present ）

had a screw loose （ participle past ）

had a screw loose （ past ）