Living within your means = staying out of debt by not spending more money than you actually have.
If you live hand to mouth, it means you barely have enough money to feed yourself -- the image is that you can just afford enough food to fit into one hand.
Cleaning ones mind of misunderstanding
to express ones self basically means that you live in the Los Angeles area.
If you listen to gossip, it will poison your ear about Joe.
Stay calm; stick to your guns, and you will carry the day.
The idiom "cast ones bread upon the waters" likely means that you need to put yourself out there and take a risk for a chance of something good happening. Fishermen would cast bread (food) into the water in order to catch a multitude of fish, is where the phrase comes from.
The correct idiom is 'Live in vain.'This is to have a wasted life. To have failed to achieve anything or have ones achievements nullified.
If you have your hands full, you can't do anything else with them, can you? This idiom means that you're overloaded and don't have time or ability to do anything else.
Er ... what? Are you asking what "under one's wing" means? Here's a link.
If I do something "behind your back", it means that I do it without your knowledge, usually in a sneaky way.
It means ones who live forever, I think.
Cleaning ones mind of misunderstanding
It's not really an idiom - if something is at your heels, it's following close behind you. This means right behind you, almost upon you.
to express ones self basically means that you live in the Los Angeles area.
eight mr. patatos
To lose ones temper and react violently.
Keep an idea in ones head to act on it later.
To "dig ones grave" is to get ones self in trouble. Example- He dug his own grave when he decided to steal from the teacher and then brag to other faculty about it.