Definition of flat out in English:

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flat out

1As fast or as hard as possible: the whole team is working flat out to satisfy demand (as adjective flat-out) the album lacks the flat-out urgency of its predecessor
More example sentences
  • The National Trust's property and forestry teams are now working flat out and have been all over the weekend to try and clear the debris and make safe the damage, as far as is possible, as more gales and rain are forecast.
  • We'll have a ten-strong team working flat out for four weeks from July.
  • But, is it too much to expect both teams to go flat out to win?
2 informal, chiefly North American Without hesitation or reservation; unequivocally: in those early days I’d just flat out vote against foreign aid (as adjective flat-out) flat-out perjury
More example sentences
  • Alana told me flat out that she's voting for Jessica.
  • He has been totally objective and even flat out rejected some of the sample devices.
  • He says flat out that he's not going to vote for the president's bill.
hard, as hard as possible, for all one's worth, to the limit, all out;
at full speed, as fast as possible, at full tilt, full bore, full throttle, in high gear
informal like crazy, like mad, like the wind, firing on all cylinders, like a bat out of hell
3Lying completely stretched out, especially asleep or exhausted: she was lying flat out on her pink bath towel
More example sentences
  • Not only did he photograph battleships and the fleet at sea, but he also turned his camera at everyday life on board, recording members of the crew at work, the ship's dog, and even an exhausted sailor flat out asleep on deck.
  • A clash of heads left one player lying flat out on the pitch.
  • A friend drove him - lying flat out on the back seat of a Range Rover to avoid photographers - from the house in Didsbury.
See parent entry: flat
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