horn in
[verb]
Synonyms: meddle, busybody, butt in, fool, interfere, interlope, intermeddle, make, monkey (with), tamper (with), intrude, chisel (in), cut in, intertrude, obtrude

[TahlilGaran] English Synonym Dictionary ▲

horn in phrasal verb American English informal (see also horn)
to interrupt or try to take part in something when you are not wanted Synonym : butt in
horn in on
Don’t try and horn in on our fun.

[TahlilGaran] Dictionary of Contemporary English ▲

horn in
horn in (on (someone/something))
to interrupt or try to become involved when you are not welcome.
George worried that his brother would try to horn in on the company's success.

Related vocabulary: in on something, let someone in on something

[TahlilGaran] English Idioms Dictionary ▲

horn in
v., slang To come in without invitation or welcome; interfere. Often used with "on".
Jack would often horn in on conversations discussing things he knew nothing about.
Lee horned in on Ray and Annie and wanted to dance with Annie.
Compare: BUTT IN.

[TahlilGaran] English Idioms Dictionary ▲