Sass Thumb

Sass thumb: a electronic response by only a single thumbs up.

When someone is annoyed at the message and replies with a single thumbs up emoji.

Steph: well I'm talking to my ex boyfriend
Dak: 'replies with a sass thumb'
Steph: why did you just reply with a thumb reaction?
Dak: (2 hours later) that was sass thumb

Grr thumb

The inability of the thumb to function properly after completing 78 laps on Monaco in F1 game with a controller.
Usually lasts for 5 minutes.

Why did you get a 10s penalty for corner cutting, is it your grr thumb?