This is a more splendid subgroup of the "lol" text message phenomena. It directly means "Holy Fuck That Was Funny" and actually triggers 17X the number of neurons in the brain while typing compared to "lol."
Brenda-So I was down on the beach today and Todd said he liked my jeans, that they were the sexiest thing he'd ever seen....i didn't tell him they were his!!
Carrie-HFTWF!!!
Carrie-HFTWF!!!
by Jesse "Murdock" Warren January 18, 2007