Belly Button Measuring Test 

BBMT- A test in which a male tries to reach his bellybutton with his penis while erect. For males with innie belly buttons, their penis must at least reach the crater of the belly button.

Guy #1- I failed the belly button measuring test, now my girl wants to leave me!
Guy #2- I had to get my belly button surgically moved down to pass.

Belly Button Measuring Test by Someguyyouveseenbefore January 12, 2025

other belly-button 

(noun)- Slang for vagina.

Joe: "I just caught my wife playing with her other belly-button"
Tom: "Her other what??"
Joe: "I caught her rubbing her pussy!"

other belly-button by neineinein329 July 28, 2015

Second Belly Button Syndrome 

the condition that occurs when a male enters frigid water and his member thusly contracts to the size of a belly button, either outie or innie (depending on wellness of his endowment), and causes the temporary formation of an apparent "second belly button" for the duration of his time in the water and a period of approximately five minutes after his recession to dry land.

"Yo bro I totes had Second Belly Button Syndrome when I had to bail on that sick whitewater run last winter. It was hella gnarly, yet def not tubular. Ok well maybe inwardly tubular a wee bit bro."

"That's sick nasty man. Don't fucking tell me that...."

Second Belly Button Syndrome by Dr. McNadsty October 21, 2010

Innie belly button 

It's a fascinating body part than only some have. It's extremely useful because you can store stuff inside of it it's basically a built in pocket. If your lucky it can also make some delicious white cotton candy.

Guy 1: No way! You have a innie belly button, that's so cool!!!
Guy 1: I know right!

Innie belly button by Bob dinkledash January 13, 2019

Joe Nelsons Belly Button 

Large
genuinely so big it has its own ecosystem.
get too close and it might just suck you in like a black hole

‘so how big is it’
Joe Nelsons belly button big 😏

Joe Nelsons Belly Button by DaddyMckenny January 17, 2021

jessie’s belly button 

a warm soft, sometimes fuzzy hole, in the stomach of a beautiful girl, she has to have a mom bod, does not apply to super skinny no shape girls, no body likes a hard cold shallow hole.

as much as it annoyed her, jason could not resist sticking a finger in jessie’s belly button for the warm soft comforting feel

jessie’s belly button by jason1980 February 11, 2022

glass belly button 

vision portal for the clueless person

Joe's head is so far up his ass he needs a glass belly button to see.

glass belly button by everythingzen December 9, 2008