Muffin Pump 

Eating a muffin before a workout. This gives the individual carbohydrates for the lift. Thus making them be able to lift max weight to impress all the young dames at the gym

Joe: Kevin you hitting legs today?

Kevin: Nah bro, all arms everyday but I ate a muffin so I can get that muffin pump in.
Joe: Sounds good bruh me too, let’s hit arms again.

Muffin Pump by TheMuffinPump.com October 22, 2020

Pump Muffin 

A cute looking girl who has somewhat of a muffin top, but not to much to be considered a pig; One night stand material. Also, you cannot consider her good looking enough to have continued relations with.

Alright, we got the three slam pieces, Jim, you got the pump muffin

Pump Muffin by ElKeeblerElf October 2, 2010

honey muffin pumpkin pants 

An unacceptable nickname for your wife.

husband: I love you, honey muffin pumpkin pants.
wife: Don't call me that ever again.

honey muffin pumpkin pants by williamazing12 February 22, 2017

pumpkin muffin 

When a female receives cunnilingus after getting filled with semen from one or more men.

I just gave your mom a 10 man pumpkin muffin.

She's your mom too sis...

pumpkin muffin by Willow Killmeister October 13, 2013

muffinbumper 

A refined and genteel reference to women who are of a lesbian persuasion.

Muffinbumper: I'm having a hard time finding a boyfriend because all the guys assume I'm a muffin bumper.

muffinbumper by boba poppas June 14, 2018