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1.
IM abbreviation: It Made My Day
"Today I saw a hummer parked in two spaces, with a parking ticket on the window. IMMD."
by Siege September 21, 2009
 
2.
An abbreviation for "It Made My Day."
My grandfather was flirting with the Fairy Godmother at Disney World the other day! IMMD!!
by IMMDer September 04, 2010