Definition of catch one's death (of cold) in US English:

catch one's death (of cold)

phrase

informal
  • Catch a severe cold or chill.

    • ‘You could have caught your death out there in the rain!’
    • ‘You don't look like you're wearing anything under that nightdress and you'll catch your death of cold if you wear just that’
    • ‘You'll catch your death out here,’ he growled, undoing his cloak and wrapping it around her.’
    • ‘Liza fears she will catch her death if she gets entirely wet.’
    • ‘Um… Could we stay the night, it is dreadfully cold out here, and we might catch our death if we don't get in out of the rain.’
    • ‘If that was me, my mother would run on to the pitch and tell me to get off the wet grass before I catch my death of cold.’
    • ‘You will catch your death out here, without a coat!’
    • ‘There are extensive views from here across Ilkley Moor and Wharfedale, but don't forget to wrap up warm or you may just catch your death of cold!’
    • ‘It's your last chance to bring in all tender plants growing in pots before they catch their death of cold in early frosts.’
    • ‘You need to get out of those wet clothes before you catch your death.’
    • ‘Your sister would easily catch her death - she's very susceptible to illness right now and she's of a fragile constitution as it is anyway.’
    • ‘Surely a porch to stop diners catching their death of cold every time someone comes in for a beer wouldn't be too much to ask?’
    • ‘Go and put some dry clothes on quick, before you catch your death of cold.’
    • ‘When you get to the party, you change out of those wet clothes or you'll catch your death out here.’
    • ‘Some drunk helpfully kicked him and said, ‘You can't stay there, you'll catch your death.’’
    • ‘When Archer opens the window for fresh air to clear his mind, May tells him to shut it: ‘You'll catch your death!’’
    • ‘‘Ah, come in out of the rain,’ replies Mrs O'Connor, possibly innocent, possibly knowing, ‘or you'll catch your death.’’
    • ‘He will catch his death of cold one day, taking so little care of himself in these weathers.’
    • ‘You'll catch your death of cold here, if you keep sitting in that puddle.’
    • ‘Now let's get you warm before you catch your death.’