If you are under one's thumb you under the control of someone
else.
Negative!... It comes from Mid-evil days and hunting with
Falcons. You would hold the bird on your hand and the strap would
go "UNDER YOUR THUMB" !
View page
Under My Thumb - 2006 was released on:
USA: 17 November 2006 (internet)
View page
The phrase "under my thumb" means to have control or dominance over someone or something, often in a manipulative or oppressive way. It can imply a power dynamic where one person is exerting authority or influence over another.