Let's meet at a restaurant and get a bite to eat.
This is not an idiom. The idiom is "her BARK is worse than her bite" which is a dog reference meaning that she and the dog make a lot of noise but aren't really dangerous. This sentence seems to mean that she has an injured shoulder which is worse than a bite that she also has.
grab a bite
A bite of the cherry is an idiom for a chance or attempt at something.
dont bite the hand that feeds you
"Bite the bullet" is an idiom, not "bold." "Bite the bullet" means to endure a painful situation bravely.
It's short for "get a bite to eat" - it means to go have something to eat.
There is no way to say that. It is an English idiom.
The hamburger was tainted, so everyone ate a bite out of it died.
The pitbull was fettered, so it wouldn't bite anyone who walked up to the house.
To take an unhappy decision or result and deal with it resolutely
It does no good to avenge a wrong done to you because vengeance usually comes back to bite you.
In the sentence "A spider's bite is harmful", bite is a noun.