pick up on something

pick up on (something)

To detect or notice something; to become alert to or aware of something. There are a lot of mature jokes in this cartoon that I never picked up on as a kid. Did you pick up on the hostility between Jen and Tom? The cops picked up on his suspicious behavior right away.
See also: on, pick, up
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

pick up on something

in. to become alert to something; to take notice of something; to learn or catch on to something. She’s real sharp. She picks up on everything.
See also: on, pick, something, up
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.
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