Bottom jaw wobble?

[Slave2Magic]

Odd question but what does it mean? When you play fight with our JRT bitch she enjoys the game, tail wagging. When the game stops she kind of judders her bottom jaw. Any idea why?

 

[Bellasophia]

It could be due to excitement...if you google this...Jacobson organ and teeth chatter....it will give links to similar behavior,usually seen in male dogs,though females can also do this....they chatter their teeth and judder the lower jaw to stimulate a scent detecting organ,Jacobson's organ. So essentially your little dog could be prolonging the pleasure of her game.