Examples of third rail in a Sentence
Social Security is the third rail of American politics.
First Known Use of third rail
THIRD RAIL Defined for English Language Learners
Definition of third rail for English Language Learners
: a metal rail on a train track that carries electric current to the train's motor
: a difficult issue that politicians try to avoid talking about
Seen and Heard
What made you want to look up third rail? Please tell us where you read or heard it (including the quote, if possible).