GHOST OF A

Least trace of; slightest resemblance to; smallest bit even of; a very little. Usually used with "chance" or "idea" in negative sentences, or with "smile". * /There wasn't a ghost of a chance that Jack would win./ * /We didn't have the ghost of an idea where to look for John./ * /The teacher scolded Harold for drawing a funny picture on the chalkboard, but she had a ghost of a smile./ Compare: FAT CHANCE.