When a big girls pants are ripped on the inside thigh area and the fat bulges out of the rip. The boyfriend (or girlfriend) then gently slaps the bulge of fat back and forth which is the act of free-flubbing.

This word was actually created by my babe, who is a large woman, who is very comfortable with herself and makes me feel comfortable with her. Free-flubbing is not a sexual act as much as it is an act that shares a sense of freedom and closeness between two consenting adults. Not at all thought of as something to ridicule a large person.
Today when my babe slid into the seat of my car, I heard her pants rip and saw a big piece of flab sticking out of the hole. Being very confident in herself, she took my hand and slapped it back and forth against the bulge of fat, turning me on to my first experience in what she calls free-flubbing.
by Kid Blue April 19, 2022
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