Noun -
A celebration of the Cowbell. {Every April 5}
On Cowbell day, you always must add more Cowbell.
Always.
John - "Hey, did you bring the Yellow and Green muffin tops sprinkled with Iron for the Cowbell Day Festival?"
Jake - "I sure did. Did you remember your Elmos Slippers?"
John - "Yep"
Jake - "And if Marry brings Candyland, this will be a great Cowbell Day."
by TheLandofMysteryQueen April 5, 2008
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