Pronunciation: (kōt'tāl"),[key] —n. 1. the back of the skirt on a man's coat or jacket.
2. one of the two back parts of the skirt of a coat, esp. one of the tails on a tail coat.
3. on someone's coattails, aided by association with another person: The senator rode into office on the President's coattails. 4. on the coattails of, immediately after or as a result of: His decline in popularity followed on the coattails of the scandal.
—adj. gained by association with another, esp. with a successful or celebrated person: coattail benefits.