a hemsley is a human or a almost human who does not understand what to do in normal situations. hemsleys usually are weird and not quite normal in the brain. No one like them and they are annoying . A hemsley is another word for 'ihavenoideawhattodowithmylifeanymorecozihavenolifeomgwat' they will never ever be in a relationship coz they are too busy making fun of others crushes. And once in a while someone will pretend to be friends with a hemsley. It is best to avoid a hemsley as they are always up to no good. hemsley is silly and small