Home : Online Slang : TTFN TTBOMK | TTG Tweet TTFN Meaning Ta-ta for now Type Acronym Rank ★ ★ ★  Common Usage Online Only (chat, messaging, e-mail) Comments A variation of BFN. "Ta-ta" originated from Cockney English and is another way of saying "goodbye." Updated December 20, 2012 All "T" Slang Terms Online Slang Home Print