WTH Views 17 meanings found WTH is widely used online as an exclamation meaning ‘what the hell’ or ‘what the heck,’ and it also serves as the abbreviation for West Tennessee Healthcare in the medical sector. Medical Wall THickening West Tennessee Healthcare Miscellaneous Waist-To-Hip circumference ratio White Top Hat Want to Hire Who the Hell Welcome to Hell Community William Temple House World Travel Holdings Governmental What The Heck Computing Web Team Hosting Internet What The Hell Way 2 High Business WebTeamHosting.com Water Hall Group, PLC. Water Hall Group Castleworth Ventures, Inc.