ghost of a

[ghost of a] Least trace of; slightest resemblance to; smallest biteven of; a very little. Usually used with "chance" or "idea" innegative sentences, or with "smile".

There wasn't a ghost of achance that Jack would win.

We didn't have the ghost of an ideawhere to look for John.

The teacher scolded Harold for drawing afunny picture on the chalkboard, but she had a ghost of a smile.

Compare: FAT CHANCE.