There are thousands. Still, no need to get your knickers in a knot.

They are many common euphemisms that can be used in general contexts. Some are ruder than others, especially when referring to certain people or objects. Many refer to things people talk about delicately, like sex, death, etc. Sometimes they are meant to be more intense or colorful. Here are a handful (use at your own risk)... "Is insane" has bats in the belfry has rats in the attic lost his/her marbles is a basketcase went nuts is off his/her rocker/hinges has a screw loose took leave of his/her senses went bananas/bonkers went off the deep end "Became angry or annoying" lost it saw red blew his/her top hit the roof went ballistic blew up blew a fuse/gasket went ape freaked out got up in arms bit my head off went up the wall got cheesed off came down like a ton of bricks got his/her knickers in a twist got his/her feathers ruffled foamed at the mouth got in my hair got on my case became a pain in the neck became a handful got all hot under the collar gave me a tongue-lashing his/her blood boiled got all steamed up "Died" kicked the bucket bought the farm/lot cashed in his/her chips met his/her maker late croaked is done for faded/passed away went to a better place hopped the twig joined the majority/choir is pushing up daisies rode the pale horse took the last train turned up his/her toes rests in peace

Yeah, but not some, "Many" :)

Do an internet search using the search terms "list of English idioms". There are many websites that list idioms. The benefit of seeing the idioms on these websites is that they will also explain what the idiom means.