1a) A festive gathering of only girls (or at least 80% girls), where there is a substantial abundance of muff.

1b) The female version of a Sausage Fest

2) Party based on consumption of alcohol- or marijuana-infused Muffins
Last night I went to a party at Emily's, but it was soo boring, a total Muffin Party. All chat, no boozing, and not a schlong in sight
by Arsefff March 10, 2011
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A large party where people eat muffins. They are usually the most bamf parties around.
muffins are delicious, lets have a muffin party.

There is a muffin party at spence's house on friday.
by bannanaman69 July 13, 2010
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When a group of testosterone filled hetero or homo men decide out of boredom to jerkoff on a muffin, the last one to blow his wad has to eat the muffin
The guys were bored so they threw a wet muffin party.
by Beefiwiw October 20, 2003
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When a group of testosterone filled hetero or homo men decide out of boredom to hang shits on muffins, if you miss the muffin you have to eat it.
The guys were bored so they threw a chocolate muffin party.
by chopper July 6, 2004
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It is similar to a stud muffin, but he/she also is at every party you go to. You will see them for sure at every party, also can be called a partyholic or party rocker.
Damn dude, he's always at the parties. What a party muffin bro!
by Vanja Mehmedovic July 12, 2010
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a single-serving cake (muffin) with frosting, as if decorated for a party
Yo we should get some of those party muffins for your birthday!
You mean cupcakes?
You know what I mean!
by jnmtx November 26, 2017
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