couldn't

couldn't [act/argue/fight] your way out of a paper bag (humorous)

if someone couldn't act, argue, fight etc. their way out of a paper bag, they act, argue, fight etc. very badly. It's no good asking Jim to protect you - he couldn't fight his way out of a paper bag.

See also: act, argue, bag, fight, paper, way

couldn't believe your eyes

if you say that you couldn't believe your eyes when you saw something, you mean that you were very surprised by it. She couldn't believe her eyes when she saw him drive up in his new car. I could hardly believe my eyes. They'd made so many changes, it looked like a completely different house.

See also: believe, eye

couldn't lie straight in bed (Australian, informal)

if you say someone couldn't lie straight in bed, you mean they are very dishonest. Nothing you could say about Pete would surprise me. The man couldn't even lie straight in bed.

See also: bed, lie, straight

couldn't organize a piss-up in a brewery (British & Australian, very informal!)

if someone couldn't organize a piss-up in a brewery, they are very bad at organizing things. For god's sake don't ask Martin to make the arrangements. He couldn't organize a piss-up in a brewery.

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someone couldn't care less

someone does not care at all. Most fans couldn't care less about it.

See also: care, less

I couldn't agree more

I support that very strongly. I couldn't agree more with the opinions stated in your recent editorial.

Usage notes: sometimes used in the form somebody couldn't agree more: Lots of people think the use of handheld phones while driving should be outlawed, and state lawmakers couldn't agree more.

See also: agree, more

you couldn't have asked for (anything) more

this is the best thing of its type you can imagine. My career has been terrific. I couldn't have asked for more. Our daughter's babysitter turned out to be wonderful — we couldn't have asked for anything better.

See also: ask, more