Slackbottom England England Yorkshire A location in Yorkshire, England. 😄 Why It's Funny Sounds like loose or saggy buttocks. 📍 Location A place in Yorkshire Etymology & History From 'slack' (a hollow or valley) and 'bottom' (valley). A valley within a valley. Leave a Comment Cancel replyYour email address will not be published.Your Definition or UsageName * Email * Website Save my name, email, and website in this browser for the next time I comment.