What does coattail mean?
A coattail is the longer back portion of a coat, hanging down behind the wearer's legs — a feature most visible on formal garments such as tailcoats and morning coats. Far more often, however, the word appears in its plural form in a figurative sense: to ride on someone's coattails is to achieve success by attaching oneself to another person's popularity, influence, or momentum rather than through one's own efforts. This usage is especially common in American political commentary, where the 'coattail effect' describes how a popular candidate at the top of a ballot helps lesser-known candidates from the same party win office. Because it implies borrowed rather than earned achievement, the phrase can carry a mildly critical tone, though it is also used neutrally to describe legitimate political momentum. The word is standard in both British and American English and is well established in journalism and everyday speech alike.
The longer back part of a coat that hangs down below the waist.
"His tailcoat had long, elegant coattails."
Usually used in the plural form even for a single garment.
(Figurative) The benefit or advantage derived from another person's success or influence, typically expressed as riding on someone's coattails.
"The candidate rode into office on the senator's coattails."
Almost always appears in the plural; common in political contexts.
The plural is the dominant form in both literal and figurative usage; the singular is rare outside technical descriptions of garment construction.
"Several down-ballot candidates won on the president's coattails."
American politicians have been 'riding on coattails' since the 1800s — when a popular presidential candidate at the top of the ticket literally carried less-known candidates into office on his success.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of coattail
Coattail is a straightforward English compound of 'coat' and 'tail,' referring to the tail-like back flap of a coat. The word 'coat' itself entered Middle English from Old French 'cote,' ultimately of Germanic origin. The compound arose naturally once tailored coats developed distinct back flaps; its figurative political use, 'riding on someone's coattails,' became established in nineteenth-century America, when popular presidential candidates were said to carry their party's lesser candidates into office.
How coattail is actually used
The plural 'coattails' is far more common than the singular in both literal and figurative use. The figurative sense is informal to neutral and appears frequently in political journalism. 'Riding on someone's coattails' can carry a slightly negative connotation, implying unearned success by association.
Easily confused with coattail
Piggyback means to build on or carry something using an existing system or effort, while coattail specifically evokes benefiting from another person's success or popularity.