We've had a very successful year, and I think we have a right to 'blow our own horn' [=('Brit') 'blow our own trumpet'] a little.
When he heard there was trouble, he 'got on the horn' to the police. [=he phoned the police]
The bad economic news has caused many investors to 'pull in their horns'.
(..) They're gonna cut them off. Can we just split up? No. The cars. - If they run... - We lay on the horn when we start it... - I'll bring my arm down, and we go. - Yes. Stay together! - Damn it! (..)2017 TvShow: The Walking Dead Title: Rock in the Road Season: 7 Episode 9