Get on the horn slang dated
To use the telephone to talk (to someone).
My mom got on the horn to the teacher to ask about my academic transcript.
John got on the horn to the bank teller to complain that he couldn't send money with the mobile banking app.
To feel or show strong sexual desire, particularly of a man; to have an erection.
He told me that just seeing a pic of his crush could make him get on the horn.
He got on the horn when looking at a photograph showing a naked woman.
The verb "get" must be conjugated according to its tense.
The origin of this slang is not clear.
If you swallow the bait, you take something that someone offers you, or agree to do something that someone asks you to do without knowing that it is a trick or way of getting something from you.
You can't just do whatever he wants you to do. Don't swallow the bait.