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1.
An idiot with no common sense. Typically large oafs that speak mainly with one possibly two syllable words.
If you have seen the Godfather this will help. I'll put it in a sentence. That Luca Brasi is a real marmaluke.
by Jonny21 January 28, 2008
 
2.
A mix between a seal and a feather. Its cry sounds-"MARMA! MARMA"
-Did you just scream "MARMA! MARMA!"?
-No, that was that marmaluke over there. it looks like a feather, but its also a seal, native to Alaska.
by SAVE THE MARMALUKES January 21, 2011