it's on


Also found in: Wikipedia.

be on (one)

1. To be one's fault or responsibility. This whole mess is on the sales department, not us! Fine. But if this goes wrong, it's on you. The mix up is on me, OK? I'm sorry!
2. Of a drink, meal, performance, etc., to have the expenses covered by one, especially as a gift or benefit to someone else. A: "How much do I owe you for the tickets?" B: "Nothing, it's on me." No, no, the meal is on the house—the boss insists.
See also: on

it's on

An exclamation of readiness, eagerness, or anticipation for something, especially a competition or confrontation. He said what behind my back? Oh, it's on! The other team is really picking up momentum, it's on now.
See also: on
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
See also:
References in periodicals archive ?
Normally it sells for pounds 9.99 but it's on offer at superdrug for only pounds 4.99.
Full browser ?