A sex move where you repeatedly poke your thumb in a girl's bunghole, The same way you would press the throttle to rev a four-wheeler.
by Bacardi Pete June 2, 2024
by SQUIRRELMODE May 20, 2021
-Hey, I just saw that second picture. Was the surprised look on her face because of the huge selection?
-My bad, thumb fumble
-My bad, thumb fumble
by spenger April 26, 2011
by Brandon sent me May 20, 2021
by its.loran April 20, 2022
by 50 go brrr May 20, 2021
by Durban Bictionary May 20, 2021