be/get wise to somebody/something

get wise to

Also be wise to. See through the deception of; also, become aware of. For example, It took a while, but she finally got wise to Fred's lies, or I'm wise to the fact that her clothes come from a thrift shop. [Colloquial; mid-1800s]
See also: get, wise

be/get ˈwise to somebody/something

(informal) be/become aware of something or aware of somebody’s (usually bad) behaviour: When did you first get wise to what was happening?He thought he could fool me but I’m wise to him.
See also: get, somebody, something, wise
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