Think about literally washing your hands and you can figure this out. If you wash something off your hands, you are getting rid of it. Washing your hands of something means you are done with it - you take no further responsibility or work no further on it.
This is not an idiom. It means exactly what it says -- someone is putting their hands into their pockets.
It literally means, "Wash you[rself] the hands." But it's interpreted simply as, "Wash your hands."
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.
Nothing. You have left out part of the idiom. Perhaps you mean "your hands are tied," which means that you have no power to do anything in a given situation.
wash your hands :)
The expression "to be short handed" is not an idiom, since its meaning may be guessed from the words in it. It means having too few "hands," or crew members.
'se mouiller' means literally 'to get wet /soaked'. As an idiom, it means "to get involved by taking (some) responsibility'. You would use 'to get one's hands dirty' as an equivalent in English.
It is supposed to be wash their hands not your hands because that wiuld be weird having someone wash your hands for you.
Think about what it's like to have your hands full of stuff -- you can't carry anything else, and it's hard to hold onto what you've already got. The idiom means that you already have enough to do and cannot take on any new tasks.
You must wash your hands before cooking because there are some dirt on your hands and if you don't wash them then you will basically be eating dirt
If you get a caustic substance on your hands, immediately rinse them with running water for at least 15 minutes. Remove any contaminated clothing or jewelry while rinsing. Seek medical attention if the area is burned or if irritation persists.
It's not an idiom. It means exactly what it looks like.