Flap bag 

A skanky minga, found in western Sydney.

Yo Bruce, check out that flap bag on the corner.

Flap bag by Steven R27 October 17, 2008

Flap bag 

Similar to tea-bagging but reverse the genders

Ollie: hey babe flap bag me
Simone: ok! lie down

Flap bag by SturtImLovinIt February 19, 2021

Flap-Bag 

The flap of fat that hangs over the pant line of an obese person.

That lady has one huge flap-bag.

Check out the flap-bag on that person.

Flap-Bag by Drew Butner February 10, 2009

Flap Bagging 

When a woman suction cups her flaps to a person or object

Oi I heard Emma went around flap bagging the whole house!

Flap Bagging by Dramallana February 15, 2017