two-timer

English

Etymology

From two-time +‎ -er.

Noun

two-timer (plural two-timers)

1. A person who two-times another.

   Synonyms: see Thesaurus:cuckolder

   • 1972, Donald Fagen, Walter Becker (lyrics and music), “Do It Again”, performed by Steely Dan:

     When you know she's no high climber / Then you find your only friend / In a room with your two timer / And you're sure you're near the end