Abbreviation for Taking Care of Business; often used to refer to Bauchman-Turner Overdrive's hit song. Also used as slang in "legitimate businessmens' clubs" to desribe a job
that must be done.
Bart: Who are those pleasant old men?
Homer: It's BTO -- they're Canada's answer to ELP. Their big hit was TCB.
That's how we talked in the '70s. We didn't have a moment to spare.