Off one's trolley
形容人因年老而思維混亂、神志不清或行為古怪。
用于非正式場合形容人糊涂或衰老。
英文釋義
Senile.
例句
Grandpa has been off his trolley lately, forgetting where he put his keys.
典故來源
源自19世紀有軌電車,當電車脫離軌道(trolley)時就會失控。比喻人的思維脫離正常軌道,變得混亂或瘋狂。