Definition of let (someone) have it
- When she found out what they'd been doing, she really let them have it.
: to cause to : make
: to give opportunity to or fail to prevent
used in the imperative to introduce a request or proposal
: something that impedes : obstruction
: a shot or point in racket games that does not count and must be replayed
: hinder, prevent
: small one
: article worn on
: some person : somebody
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