May your yin-yang hind-end twirl May your yin-yang hind-end twirl free. I couldn’t have said it better myself. Share this:MastodonFacebookTumblrLinkedInPocketEmailPinterest By Kevin Lawver Web developer, Software Engineer @ Gusto, Co-founder @ TechSAV, husband, father, aspiring social capitalist and troublemaker. View all of Kevin Lawver's posts.