be in (your) element

to feel happy and relaxed because you are doing something that you like doing and are good at.

You should have seen her when they asked her to sing, she was in her element.

• have name in lights
• have name on it
• have name written all over it
• have nose in a book
• have nose in the air
• have nothing between ears
• have nothing between the ears
• have nothing between your ears
• have nothing going for
• have nothing going for it
• have nothing going for you
• have nothing to do with
• have nothing to do with someone
• have nothing to do with something
• have no time to lose
• have no truck with
• have no truck with someone
• have no truck with something
• have no use for
• have no use for someone
• have no use for something
• haven't lived
• haven't lived until
• haven't lived until something
• haven't seen hide nor hair of