A rectangular cloth with crude stiching worn by morbidly obese persons.
Becca said, "Dude, I've gained SO much weight, I need to wear a moo moo!"

Amy walked by and shouted "Hey, Jane, look at Roberta's dress. It's so huge, she looks like she's wearing a moo moo"
by Jess June 09, 2004
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uh moo moo is uh big-ass night gown or dress that big-ol's wear.
my grandma wears moo moos with no underwear.



OH SNAP:SHE DID NOT wear that moo moo wal-mart!
by shauna-nanaMACmissBUTTcrack January 29, 2009
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When a cock and a cunt come together, the juices produced are called moo moo.
After i fucked that bitch, i spilled the moo moo all over the floor.
by Philbert22222 May 30, 2007
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a small to medium sized dog that has fur that resembles that of a cow
your dog looks like a minature cow. yeah i know she's my "moo moo"
by invadergirl March 20, 2009
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