Cats might have nine lives, but Tom's using them up like they're going out of style! The usage of the idiom "A cat has nine lives" is perfectly exemplified with Tom's accident-prone self.
In this clip, Candace has to answer a call and tells her mother she is "taking" it. This is an idiom; one does not "take" a call so much as they answer it.
In this clip, Dr. Doofenshmirtz tells Perry the Platypus to "have a taste" of his ray gun. He isn't proposing that Perry literally taste the gun; he is telling Perry to experience it.