/ˌəndərˈkət ˈsinˌdrōm/

When a female with short hair, or an undercut, has obsessively loved a person who does not love them back.
1: Due to Kayleigh's recent actions, I believe she has Undercut Syndrome.

2: “Emma has been obsessing over Jack since spring, but since Jack doesn’t like her, these are major symptoms for Undercut Syndrome.
by faggeta_1966_ November 27, 2017