pin on

Idioms  

1. Attribute to someone, especially a wrongdoing or crime. For example, They pinned the murder on the wrong man. This expression uses pin in the sense of “attach.” [First half of 1900s]

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Example Sentences

In Armani's refined yet relaxed collection, some men sported a tie pin on their jacket lapel, while male and female models wore matching sparkling brooches.

From Barron's

“Yeah, I have an injured coyote here in Rockledge. Yeah, looks pretty bad. I’ll text you the location, drop a pin on the map. Yep. Okay, great.”

From Literature

“I can’t put a pin on why it’s happening,” he added, wryly acknowledging that his view, for now, is looking up from the pool at the Chateau.

From Los Angeles Times

She reflects that her response — “There is nothing that comes to mind” — landed as if she’d “pulled the pin on a hand grenade.”

From Los Angeles Times

The analyst dropped a pin on the migrants and the VaDER program began tracking their movement in a blue trail.

From Los Angeles Times