That´s the beauty of this place, and that of learning languages, sometimes you find expressions where you least expect them. But it´s also motivating, English don´t need to be serious all the time, it can be funny, colourful, surprising.
It´s somehow like traveling. I remember I was coming to Rio by car with my family, then we stopped in at this restaurant/hotel for lunch, after which they decided to walk by a mini-zoo, then my child comes to me saying "look dad, to that big hamster!'" genuinely surprised...I went there, saw it, and corrected him "it´s not a hamster, it´s a guinea pig!"
Other time we were in Natal, in a street fair in the open, and then this guy is passing by with those two animals tied with a rope. Then my kid jerks my arm almost making me lose my balance, going sideways.
Then he says "look that guy, with such big dogs!"
They are not dogs, these animals are called goats!