Protruding fat mass between the belly-button and the upper pelvis whose shape has been severely affected by the action of gravity.
Demographically, the belly underflap is most common in senior men who drink a lot of beer and women in their thirties who tend to choose extremely tight clothes.
Belly underflap is also observable in successful biggest loser contestants
Demographically, the belly underflap is most common in senior men who drink a lot of beer and women in their thirties who tend to choose extremely tight clothes.
Belly underflap is also observable in successful biggest loser contestants
boy 1 - "Hey dude! Check-out that girl's belly underflap!"
boy 2 - "Yeah! Yesterday she was totally hawt, but today she looks like T-1000 in the molten iron pool!"
boy 2 - "Yeah! Yesterday she was totally hawt, but today she looks like T-1000 in the molten iron pool!"
by jtuf January 6, 2012

When you have the worst diarrhea of your life and should not be further than 4 seconds from a toilet. This mainly happens after eating at Willies's Grill and Ice House, but can happen at any eating establishment. You will think you have got it all out of your system, but once you stand up from the toilet, your stomach tells you its time to go again.
by bozzbaby June 2, 2017

Smacking someone’s stomach till it’s beat red then cumming on their tummy and rubbing it in until it’s neon red
by DaddyDane May 18, 2019

A game in which one person pokes another person in their belly, not to be taken sexually but can be ;)
by DinoStudios April 23, 2014

by mr06825 January 2, 2017

An amazing girl who is fabulous and deserves the best. Beautiful, funny, smart, fun worded, etc. are all good qualities of this girl. Tinker belly knows what to say when you are sad and can bring a smile on your face. Just knowing Tinker Belly is a privilege not to take for granted. These one of a kind girls should be written about in history books and praised as goddess. Tinker Belly is amazing.
by The Great Anonymous August 7, 2015

by JoeyBomm October 17, 2021
