junk mail


noun

unsolicited commercial mail or email.

Origin of junk mail

First recorded in 1950–55

British Dictionary definitions for junk mail

junk mail

noun

untargeted mail advertising goods or services

Idioms and Phrases with junk mail

junk mail

Third-class mail, such as unsolicited advertisements and flyers, that is sent indiscriminately. For example, While we were on vacation the front hall filled up with junk mail. [c. 1950]