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1.
A day in which we celebrate the late Billy Mays. It's Traditional to wear a blue collared shirt with a white under shirt. Must also wear khakis. You must use CAPS LOCK the whole day. Even when talking to family or friends. If you can grow a beard by then, you are the man.
Guy1:OH MY GOD GUESS WHAT DAY IT IS!?!

Guy2: I don't even know if that was a question or a declaritive statement.

Guy1:BILLY MAYS DAY!

Guy2: There goes my ears.

Guy1:I GOTTA GO PUT ON MY BLUE SHIRT AND KHAKIS!

Guy2: what?
by MaysMan July 20, 2009
 
2.
n. an unofficial holiday celebebrated on June 28th in honor of the death of legendary salesman and TV icon Billy Mays. It is customary to wear a blue shirt on this day in memory of Billy, due to his trademark blue shirt that he wore in nearly all his infomercials.
I need to find a blue shirt to wear. Tomorrow is Billy Mays Day.
by chris71693 July 08, 2009