This joke does not make sense to me. Unless you have dyslexia, in which case this isn’t a joke it’s just a sentence written by a person with dyslexia. I’m rewriting your joke. A man with dyslexia walks into a bar. He has dyslexia not polio, so his walking into places was not affected. However, he did misread “beer” and ordered a “reeb” because when he read the drink menu card thing he was feeling adventurous and was going to try something new. He was very confused when he took a sip as it tasted like beer. Turns out the bar he was in served the brand of beer called Reeb. Because his venturesome resolution proved fruitless the man never tried anything new again.