We found 9 definitions of flat out from 3 different sources.
Adverb |
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flat out - at top speed; "he ran flat out to catch the bus"; "he was off down the road like blue murder" | ||
like blue murder | ||
flat out - in a blunt direct manner; "he spoke bluntly"; "he stated his opinion flat-out"; "he was criticized roundly" | ||
bluffly, bluntly, brusquely, roundly |