Answer: taglines

AnswerCrossword Clue
TAGLINESNike's "Just do it" and others
TAGLINESCatchwords
TAGLINESSection heading in an IMDb listing
TAGLINESAdvertising catchphrases
TAGLINESPhrases on movie posters
TAGLINESPunch endings.
TAGLINESClimaxes to jokes
taglines(on a crane) a cable for steadying a suspended bucket at the rear
taglinesthe last line of a play, story, speech, etc., used to clarify or dramatize a point
taglinesTAGLINE, the final line of a play or joke that makes the point
taglinesphrase or catchword that becomes identified or associated with a person, group, product, etc., through repetition