What it means

Said when someone’s a bit daft or spaced out, like they’re missing a key piece of the kit. It paints a silly picture of turning up for a picnic with the blanket, crisps and drinks, then realising you forgot the actual sandwich. Usually cheeky banter rather than proper cruelty, but it still means they’re not firing on all cylinders.

Usage examples

"Dave tried to iron his shirt while still wearing it, then blamed the kettle for the burn. He’s one sandwich short of a picnic, bless him."
"He tried to defrost the fish with a hairdryer, bless him, one sandwich short of a picnic that lad."
"She means well but she's one sandwich short of a picnic, left the car running in the drive all afternoon."
Tone
Funny Dismissive
Where it is said

Other ways to say it

Editors of this term

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