1. Ta-ta for now; used to end e.g. e-mail or a text message

Encyclopedia: TTFN

• thawing
• ThB
• THC
• ThD
• the
• the absurd
• The Admirable Crichton
• the Alps
• the bends
• the boot
• the City
• the devil
• the Flood
• The Gambia
• the Great Calamity
• The Great Charter
• the Great Compromiser
• the Great Hunger
• the Great Starvation
• the great unwashed
• The Hague
• the halt
• the Hill
• The Holy See
• the hots