What is "greatest thing since sliced bread"

Usage examples of "greatest thing since sliced bread".

So how come you professional military types carry on like theyre the greatest thing since sliced bread if theyre so temperamental and unreliable?

So how come you professional military types carry on like they're the greatest thing since sliced bread if they're so temperamental and unreliable?

And didn't they make it pretty clear, a couple of years ago, that they think you're the greatest thing since sliced bread?

But what we've got now isn't the greatest thing since sliced bread, either.

The office I work in shuts down for the first two weeks in August so that all the regular people can take their vacations, and that crazy Swede boat builder you work for is so convinced that you're the greatest thing since sliced bread that he'll probably give you the two weeks with pay.

The guy was making it sound like the greatest thing since sliced bread, and because he looked as though he really believed it, Gardener decided he must be a wheel of a rather small sort, maybe even a spare tire.

Back in the late sixtiesbefore your time, I knowthe young crazies who thought LSD was the greatest thing since sliced bread often dumped it secretly in cafe coffee urns and the like.

Those blokes on tele and in the White House think Mitch is the greatest thing since sliced bread.