1 definition by Biff Masterson
Something people occasionally get a case of on the first day of the modern work week. Add extra "oooo's" as necessary.
Office Worker #1: Good morning.
Office Worker #2: (No response)
Office Worker #3: Sounds like somebody has a case of the Moondays.
Office Worker #2: (No response)
Office Worker #3: Sounds like somebody has a case of the Moondays.
by Biff Masterson May 24, 2005