Mean Business Meaning
(idiomatic, used to convey serious intent) To be serious, especially where achieving a specific end against opposition is concerned.
Example: 1895, William Chambers, Robert Chambers, Chambers's journal:
Say in a week from now, I will undertake to deliver this most marvellous masterpiece, if 'Look here, 'Tony, I mean business, if you don't.
2002, Armando T. Atienza, Shrewd Business Tactics:
He projects his concern to all employees and he means business when he says the â€œbuck stops hereâ€.