blueberry muffin 

When a girl wears clothes that are too small, particularly jeans. Tight jeans push up the fat on her hips, which spills over the sides of the pants like the top of a muffin around the wrapper.

Also called cupcake.

blueberry muffin by The Singing Butler July 26, 2005

blueberry muffin 

In certain cultures, especially in military tours to Afghanistan, asking for a 'blueberry muffin' at a massage parlor means to get a hand job at the end in exchange for a big tip.

person 1: I got a massage today at FOB Shank massage parlor.
person 2: Did you get a Blueberry muffin at the end?
person 1: Yeah, it cost me an extra $20.

blueberry muffin by DirteeDude2 March 10, 2014

Blueberry Muffin 

The best food ever created!!

You: dude, wanna go get some blueberry muffins?
Me: fu*k yeah!

Blueberry Muffin by PinkFloydLedZeppelinlover September 2, 2017

blueberry muffin 

The penis after an anal cream pie. From the blueish green tint to the substance.

After doing her in the ass, she gobbled on the blueberry muffin.

blueberry muffin by kintatatsu November 23, 2010

blueberry muffin 

It happens every May. You come back from school only to find your female friends from high school getting fatter and fatter. The term blueberry muffin describes a girl who, despite meeting that description, continues to wear the same clothes she did in high school. If you haven't made the connection between the girl and the muffin, take a look at the part of the muffin which flops over the wrapper.
-From Collegehumor.com

Jamie has turned into a blueberry muffin, but I would still cover her in my frosting.

blueberry muffin by Akbar42 August 6, 2004

blueberry muffin 

a blueberry muffin is a diseased vagina.

i had sex last week and now im pretty sick - that girl must've had a blueberry muffin.

blueberry muffin by sexytime27 May 26, 2008

Blueberry Muffin 

A girl who gained 10-15 lbs in college but still wears the same clothes she did in high school. For an explanation, look at the part of the muffin that flops over the wrapper.

Joe: Did you see Jen in that half-shirt halter top?

Dan: Yea...She's leaking all over

Joe: Like Blueberry muffin...

Dan: hahahaha!

Blueberry Muffin by Joe October 8, 2004