While I was in Brasil to visit some years ago, I was in a small fishing village with my friends.

A snake crossed the road and Carlos shouts "Cobra"

Expecting to see a large hooded serpent I immediately looked down to see a small critter no larger than a Dekayi, and said that's not a cobra.

Only to later find out, that when speaking with a Brasilian, Cobra meant snake.

We had a good laugh, went to the beach and had a nice drink.