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horn

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verb British English pronunciation: horn /hɔː(r)n/ 
Word Forms
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present tense
I/you/we/theyhorn
he/she/ithorns
present participlehorning
past tensehorned
past participlehorned

phrasal verb

horn in

[intransitive] informal
Word Forms
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present tense
I/you/we/theyhorn in
he/she/ithorns in
present participlehorning in
past tensehorned in
past participlehorned in
to try to become involved in something that other people do not want you to be involved in

My little brother always horns in when I'm with my friends.

horn in on:

Don't talk about the deal around Chuck, or he'll try to horn in on it.

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