Oscar the Grouch is a character from a TV show called Sesame Street. He lives in a trash can and he's always grumpy, which means he's not very happy or friendly. But he's still a part of the Sesame Street family and everyone tries to be his friend and cheer him up.
Oscar's home, the trash can, is his special place where he feels comfortable and safe. He likes to collect and keep things that other people might think are trash or garbage. That's because Oscar sees the value in things that other people don't. Even though he lives in a trash can, he takes pride in keeping it clean and tidy.
Now, sometimes Oscar might seem like he doesn't want to be friends or doesn't want to be around other people, but really, he just likes things on his own terms. He might grouse or complain a lot, but that's just his way of expressing himself. Deep down, Oscar does care about his Sesame Street friends and he likes spending time with them, even if he doesn't always show it.
So, in short, Oscar the Grouch is a grumpy character who lives in a trash can on Sesame Street. He likes to collect things that other people might think are garbage and he likes to keep his home clean. Even though he might seem unfriendly, he still cares about his friends on Sesame Street.