Green’s Dictionary of Slang

(US campus) an unappealing, unpopular person.

1990		Eble Campus Sl. Oct.
1996		Eble Sl. and Sociability 21: Other expressions must be said with specific combinations of pitch, stress, and pauses. Gouda, gouda, gouda, a signal that someone who is cheezy (an L7) is approaching, is intoned in measured alternations of stressed and unstressed syllables to imitate a pulsing alarm.