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start in on

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start in on someone or something

to begin dealing with, discussing, or chastising someone or something. Please don't start in on me again! You said enough the previous three times. When will you be ready to start in on painting the house?

See also: on, start

start in on

1. Begin doing something, as in We started right in on the repairs. Also see start in.

2. Attack, especially verbally, as in Nancy keeps starting in on Carl, complaining about the errors in his work. [Early 1900s]

See also: on, start

start in on

1. To begin an activity regarding (something): start in on a new book.

2. To begin to criticize or complain about (someone or something).

See also: on, start