horn in on

Idioms  

1. Intrude, join without being invited. For example, She has a rude way of horning in on our conversations. This expression alludes to an ox or bull pushing in with its horns. [c. 1900]

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Example Sentences

It’s actively working to horn in on Greenland minerals projects, in particular high-grade resources that China lacks.

From The Wall Street Journal • Jan. 15, 2026

Do NOT let them horn in on such an important time.

From Washington Post • Nov. 5, 2022

And the finding comes as authorship practices have come under scrutiny over concerns that senior researchers often horn in on credit for work done by junior colleagues.

From Science Magazine • Sep. 28, 2022

For a father to horn in on his son’s success to enrich his ego and wallet is both disgusting and pathetic.

From Los Angeles Times • Jun. 1, 2017

‘Yep. In the shop. That squeak-pig is trying to horn in on breakfast.’

From "Johnny Tremain" by Esther Hoskins Forbes