Flutter Nutter 

The act of taking peanut butter and smearing it in your partner's ass during sexual intercourse. The proceeding to anal your partner until you cum in their ass. Making it look like the delicious snack called a Nutter Flutter or Flutter Nutter.
Butt cheeks= buns, peanut butter = peanut butter, and the cum = the marsh mellow paste

So I heard Anthony gave Kamii a Flutter Nutter last night, is that true?

I cant wait to make you a Flutter Nutter in bed.

Flutter Nutter by Ryan DeHart January 17, 2009

Nutter Flutter 

A delicious snack in which a jar of marshmallow spread (usually bought from the local safeway) and peanut butter are smeared graciously between either 1)Two waffles or 2) Two pieces of bread.

John: Hey dude what do you have to eat around here?
Frank: Dude I'll make some Nutter Flutters
John: Fuck yeah man, I love those things!

Nutter Flutter by AnOffshorePrawn January 2, 2008

Nutter Flutter 

When the spunk release is so top notch, that you penis sounds like the blow off valve on an S14

Uno its good when it ends in a nutter flutter

Nutter Flutter by Black and white Mammal December 4, 2020

Flutternutter 

A third world developing country between Iraq and Spain currently embarked on a bloody civil war to break free from its Russian masters. Flutternutter was found in 1569 on the 5th of December by British settlers. Flutternutter has a population 700,000 people and was at its highest point during the 1860's for its abundance of coal. Many flutternutterish people cry for monarchy of Great Britain,cry for democracy and statehood of the U.S.A,and some believe they are fine under Russian rule. The country is currently under leadership of its leader Vladimier Kretrainov but they fight for new leadership with the revolutionary leader who goes by the name Chandelier.

Tony Stark: "Hey im going to book a trip to Flutternutter."
Jimmy pop: "Nah man don't do that they might force you to pick a side."
Tony Stark: "Maybe your right Italy's better."

Flutternutter by Epicduck12 May 18, 2017

Flutterbutter 

The overwhelming feeling of dread caused by dropping your piece of toast and seeing it fall on the floor buttered-side-down

*Avraxia drops toast* "Did it...? GODS NO!! IT FELL BUTTER-SIDE-DOWN!!!"
*Silver hears racket* "Avarxia, are you all flutterbutter again??"

Flutterbutter by Silver Zoldyck August 29, 2016