Home : Online Slang : BTCHF BTA | BTDT BTCHF Meaning Bye, take care, have fun Type Acronym Rank ★ ☆ ☆  Uncommon Usage Online Only (chat, messaging, e-mail) Comments Another way of saying goodbye, combining TC and HF. Updated January 27, 2014 All "B" Slang Terms Online Slang Home Print