Pronunciation: /flæt aʊt/
adjective complete or total
A1 I am flat out tired after a long day at work.
A2 She was flat out broke and couldn't afford to go out with her friends.
B1 The team worked flat out to meet the deadline.
B2 The company is flat out refusing to negotiate any further.
C1 He was flat out lying about his involvement in the scandal.
C2 The politician was caught flat out cheating on his taxes.
adverb at full speed or with maximum effort
A1 I am flat out tired after running around all day.
A2 She worked flat out to finish her project on time.
B1 The team is flat out preparing for the upcoming presentation.
B2 He was flat out running to catch the bus before it left.
C1 The company is flat out trying to meet the deadline for the new product launch.
C2 Despite being flat out exhausted, she managed to complete the marathon.
formal The project manager is flat out trying to meet the deadline.
informal I am flat out exhausted after a long day at work.
slang I was flat out broke last month, but now I'm back on track.
figurative Her performance in the play was flat out amazing.
flattened
flat outs
flatter out
flattest out
flat out
will flat out
have flat out
is flat outing
flat out
flat out
to flat out
flat outing
flat outed