TGAT Views 6 meanings found TGAT is used online to boast “Totally Good At That”, as a library cataloging shorthand (Title, Genre, Author, Topic), for a task group on assessment and testing, an amateur golf tour, and Thai general aviation technology. Miscellaneous Thai General Aviation Technology Task Group on Academic & Science Tittle, Genre, Author, Topic Task Group on Assessment and Testing Internet Totally Good At That Sports Tidewater Golfweek Amateur Tour