a fish out of water

Meaning

1. a person who feels uncomfortable or awkward because he or she is in surroundings that are not familiar

In the movies · 2

• You see I've not much sympathy with fish out of water, although I happen to be one myself.The Old Dark House1932
• - Yo. - Fish Out of Water.Chicken Little2005

From the same entry

• have bigger fish to fry
• neither fish nor fowl
• an odd queer fish
• there are plenty more fish in the sea
• a big fish
• a cold fish
• a different kettle of fish
• drink like a fish
• be like shooting fish in a barrel
• fish for
• fish out