metaphor is saying that not what they actually are for example: Jake is a tiger
he isn't really a tiger they are saying he's scary and so are tigers tigers are scary and so is he
yes it's a metaphor it means that you get the idea.
a
It means she's special
I am a rainbow is a metaphor it means you are happy, bubbly, excited, special and cheerful
It basically means very stubborn.
"Was a bombshell" is an idiom that means something was striking or shocking. It is not a simile, metaphor, or personification.
It means to clear the awkwardness
It means he is a nasty person.
If something is literally water-tight it means that no water can pass through it. The metaphor means that the security is so good that nothing can get through it.
It means that who ever made this metaphor is a Huge Trolling Noob
cold heart
it means blablabla