1. In boxing terms, TKO means "Techinical Knock Out". A technical knock out is when a person is struck down three times.
2. But, in terms of a person's love life, a TKO means that you've been turned down three times. Sad, but true.
Brothers for life. A brother hold where they just fuck everybody up. It means they will fuck you up if you try to start shit. They show no fear towards anybody. They get fucked and fuck shit up.