tag line
noun
Definitions
(authorship) A sentence part that attributes a piece of written dialogue to its speaker. (e.g. In "Get out of here," he said, "he said" is a dialogue tag.)
Example: Not every paragraph of dialogue needs to have a dialogue tag attached to it.
noun
Definitions
The punch line of a joke.
An advertising slogan.
A pithy quotation habitually appended to a signature in email, newsgroups, etc.
A line attached to a draft of cargo or a container to provide control and minimize pendulation of cargo during lifting operations.