A fork of Rural Dictionary
Possibly a variation of either "Come on!" or perhaps "Gotcha Money".
Popularised by the "Michael Jackass" character on the British TV Show "Bo Selecta"
Moosemas Day is in honor of Freddus Mooseus and his aid of two refugees in the middle of Wyoming, having been abandoned during a roadtrip to California. Mootlers are worn in honor of Freddus.
All hail Freddus Mooseus!