Answer:
My first half means container. Not a lot of people understand my language. What am I?
I run around the streets all day. Under the bed or by the door I sit at night never alone. my tongue hangs out waiting to be fed during the day.
I go through a door but never go in and never come out.
I am used when you jump off a bridge for fun.
I keep things green and keep kids happy during summer time.
When is it bad luck to see a black cat?