going at a flat-out gallop

Her request met with a flat-out refusal.

That allegation is a flat-out lie.

Even people who flat-out don't like fish enjoy these sandwiches.

They say the industry is flat-out lying about the effects of deregulation.

Some of the alleged plots were flat-out ridiculous.

I admit I've been flat-out unkind to the woman in the past.

When I finally got home I was flat out and had to lie down for an hour.

We were going flat out and weren't gaining on them at all.

I run flat out for a hundred yards, then jog for another hundred.

Everyone is working flat out to try to catch those responsible.

Even if we work flat out for the next three weeks, we shan't be able to completethe job on time.