Every Saturday I'll give you a couple of idioms to learn. An idiom is a saying or phrase whose meaning cannot be taken from the literal meanings of the words. I thought I'd start off with some animal idioms.
badger someone: A badger is a animal that digs holes in the ground, but to badger someone is to annoy them by constantly asking them for something or by harassing them.
The children badgered their mother for some cookies.
bark up the wrong tree: To bark up the wrong tree is to follow a wrong solution to a problem.
You think Jim took your history book? You're barking up the wrong tree - Jim hates history!