What is F.t.s.?
1.
Fuck That Shit. Often used in text messages.
Further meaning: I am no longer interested in that what you just mentioned...
"Amy says you called her a Whore"
"F.T.S. I don't care anymore"
See
2.
Fixing to Start... a country term for
she is so moody, she must be F.T.S.!
See