Definition, Meaning & Synonyms

someone-is-one-sandwich-short-of-a-picnic

idiom
/ˈsʌmˌwʌn ɪz wʌn ˈsænwɪtʃ ʃɔrt ʌv ə ˈpɪknɪk/
Definition
A humorous phrase used to describe someone who is perceived as being foolish or lacking intelligence.
Examples
  • The way he misinterpreted the instructions makes me think he’s someone who’s one sandwich short of a picnic.
  • If she believes that conspiracy theory, she might be someone who’s one sandwich short of a picnic.
Meaning
This idiom suggests that the person is not quite right in the head, implying they are missing a critical piece of logic or common sense, much like missing a sandwich can make a picnic feel incomplete.
Synonyms
  • not the sharpest tool in the shed
  • a few fries short of a Happy Meal
  • not playing with a full deck