It sounds like you have found a soda bottle but hard to tell without a picture. It is not a super common bottle if it is the one I am thinking of. In good shape probably have a price tag of about $5 or less. Hope this helps you some. the one i am thinking of has the word dream in a cloud i believe but sometimes my memory is as good as well not good lol. Id keep looking in the dump you never knwo what will be there.
Brian
Yea there is always a dialect differ when you go to the store you ask someone if they want a pop. I (Texans) ask do you want a coke? then I say what kind do you want. In Texas everything is a coke lol
Brian