dotted line

dotted line Word Origin noun

1. a line on a contract or similar document for a party’s signature.
2. a line at which a sheet of paper is perforated or a piece of it is to be detached.

Idioms

3. signature on the dotted line, full agreement to terms and conditions.
4. sign on the dotted line, to agree fully to terms or conditions.

Origin of dotted line First recorded in 1770–75 British Dictionary definitions for dotted line dotted line noun

1. a line of dots or dashes on a form or document
2. sign on the dotted line to agree formally, esp by signing one’s name on a document