be one ... short of a ...spoken used humorously to say that someone is a little crazy or stupid 〔某人〕有点冒傻气[愚蠢]〔幽默用法〕 Lady, are you a few aces short of a deck? 女士，你是在犯傻还是怎么的？
He’s one sandwich short of a picnic. 他有点脑子不开窍。
→ be one ... short of a ... at short1(14)