Answer:
My first half means container. Not a lot of people understand my language.
I am heavy forward but backward I'm not.
Fatherless and Motherless, born without sin. Roared when it entered the world, And never spoke again.
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. What am I?
Draw fire or fill me; I'm still empty.
Whoever made me don't want me. Whoever bought me don't need me. Whoever use me don't know me.