flinglebutt 

A very convenient term for annoying younger siblings without incurring the wrath of your parents.

Sam is a flinglebutt, a flingle-flingle-flingle-butt.

flinglebutt by SheKnowsWhoDidThis January 13, 2009

Finglebutt 

When she wants you to finger her jiggly butt

Michael:dude how did it go with Marrissa last night?
Jamie:she wanted me to finglebutt her!

Michael:how did that go?
Jamie: it was awesome

Finglebutt by Finglebutter June 23, 2016

FungleButt 

When you get mold growing on your butthole/taint.

Bro I think I’m getting funglebutt. I’m gonna try scratching it off

FungleButt by GoingHardWitDaWhiteChode February 11, 2020

Finglebottom

When a Hawaiian or Mexican girl inserts a kfc chicken tender into your rectum and delicately remove it and violently force it down the participants throat.

John have you ever done a finglebottom because I need pointers.

Finglebottom by Dickslayer53 July 26, 2022