2 definitions by friznani

possibly the most elusive of all butt-shapes, music teacher butt can be described as unusually long and increasingly droopy toward the south end of the caboose. nearing maturity, MTB begins to resemble a second bosom. music teacher butt affects 1 in 3 music teachers in the United States and, interestingly enough, also occurs in 1 out of 30 female band members. to spot MTB in the wild is rare, and should therefore be deemed a special moment in one's life.
1) damn, she got that MTB! was that Mrs Denny?

2) i just got back from the obstetrician and she diagnosed me with music teacher butt. dammit!
by friznani August 10, 2007
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Future Fat Ass, abbreviated. Person who will one day refer to these as his/her "skinny days." Warning signs include muffin tops (for women) and man boobs (for men).
Your friend: "hey bro, i saw you humping that girl on the dance floor last night. you get her number?"

You: "yea, but i'm thinking long-term. i can't get involved with an FFA."
by friznani July 30, 2007
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