What's "a cold joke"

I think a bad joke is the kind of "joke" that makes you want to laugh but can't, and is awkward even if you don't laugh. It's a joke that's very incomprehensible~

The origin of cold jokes It is said to be the following two jokes:

1. A little penguin asked his grandma, grandma, am I a penguin? Grandma said of course you are. It asked its grandpa again, "Grandpa, grandpa, am I a penguin?" Grandpa said, of course you are. The little penguin asked his father again, "Dad, am I a penguin?" Dad said, of course you are, what's the matter? The little penguin said, then why am I so cold? . .

2. A polar bear was bored and sat on the ice and started to pluck out its own hair, one hair, two hairs, three hairs, and four hairs. When it pulled out the last hair, it said: It's so cold. .

This cold joke has a follow-up. A penguin was also bored and started to pluck out his own hair, one hair, two hairs, three hairs, and four hairs. At the end of the hair pulling, he said something, he said: The polar bear is right. .

That’s it anyway