hi !
I don't know if you're interested in foreign expressions and proverbs, but I think it's pretty funny
here are some funny and silly expressions we use in french, their meanings and the litteral translation ^^
"tomber dans les pommes " = to faint/ to pass out -> lit. "to fall in apples"
"je donne ma langue au chat " = you usually say this when someone asks you a question and you don't have a single idea about the answer -> lit. "I give my tongue to the cat"
"décrocher la lune" = when you're capable of anything for something or someone -> lit. "to unhang the moon"
"casser les pieds de quelqu'un" = when you're extremely annoying with someone ->lit. "to break someone's feet"
"faire passer un chameau par le chas d'une aiguille"= trying to do Something impossible -> lit. "make a camel pass by the eye of a needle"
well I don't use these ones a lot because they're maybe a little "old-fashioned" but I'll try to search more actual ones