I'm assuming you heard someone say "don't lift a finger" - the meaning should be fairly obvious if you think about it. If you don't move anything, even a finger, you're just sitting back relaxing while the others do the work for you.
Depends on your culture, I guess.
to hold a firm grasp on your cup in KoppBall
It could mean a lot of things, for instance, if your nail is very long, it might just be breaking off so that it's shorter, or maybe you banged it against or in between something.
If you mean "dedo" from the Spanish word, it means finger.
it just means lifting weights that is not on a machine like using a curl bar
Nothing, that I know of. Do you mean the *middle* finger? That can mean "up yours" or "f#*k you."
It is the measurement between the thumb and middle finger, thumb and ring finger and middle finger to ring finger.
The pinky is your little finger.
green finger's mean that you are good in gardening
Twisting your middle finger and ring finger is not a commonly recognized hand gesture with a specific meaning. In some cultural contexts, it could be a gesture of frustration or irritation, but it is not universally understood in this way. It is important to consider cultural differences when interpreting gestures.
The egg remained in motion until acted upon by an outside force, your finger stopping it's motion. After lifting your finger, it remained still, because you had done nothing to move it again. This is an example of inertia.
Yes. It does mean that