From Longman Dictionary of Contemporary Englishcut in phrasal verb1 INTERRUPTinterrupt to interrupt someone who is speaking by saying something ‘What shall I do?’ Patrick cut in again. on Sorry to cut in on you, but there are one or two things I don’t understand.2 TTCdriving to suddenly drive in front of a moving car in a dangerous way on She cut in on a red Ford, forcing the driver to brake heavily.3 Tmachine if a part of a machine cuts in, it starts to operate when it is needed The safety device cuts in automatically.4 include somebody cut somebody in informalTAKE PART/BE INVOLVED to allow someone to take part in a plan or to make money from itcut somebody in on Come on, Joey, you promised to cut me in on this one! → cut→ See Verb table
Examples from the Corpus
cut in• Lila cut in again, answering before he could even open his mouth.• "There's this nice guy...' "I'm not interested, '' Roz cut in, laughing.• They're proposing cuts in the number of troops in the area.cut on• He stretched and picked up the phone, but before he could dial he realised he had cut in on a conversation.• But, at the very least, we want to be cut in on the deal.• Even now, we still want to be cut in on the deal.cut on• He stretched and picked up the phone, but before he could dial he realised he had cut in on a conversation.• But, at the very least, we want to be cut in on the deal.• Even now, we still want to be cut in on the deal.cut on• I won't shop them if they cut me in on their scam. 