Flat out has 6 different meanings across 1 category:
Adverb
Noun
Verb
1
To fail after a promising beginning; to disappoint expectations.
Adjective
1
Used other than figuratively or idiomatically: see flat, out.
Adverb
1
in a blunt direct manner
"he spoke bluntly"
"he stated his opinion flat-out"
"he was criticized roundly"
2
at top speed
"he ran flat out to catch the bus"
"he was off down the road like blue murder"
Example Sentences
"he spoke bluntly"
adverb
"he stated his opinion flat-out"
adverb
"he was criticized roundly"
adverb
"he ran flat out to catch the bus"
adverb
"he was off down the road like blue murder"
adverb
Related Terms