Top Definition
Muff Muff is used when you have a crush on someone and you don't want them to know because they have a girlfriend who happens to be one of your friends, so you need a disguise name for them and "way moo moo" is used when they are looking or acting really sexy.
"Hey did you here that Muff Muff was coming tonight? You'll probably think he is way moo moo" "Muff Muff way moo moo, bessst freeiiinn"
by GuavaLady March 08, 2009

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