butt in

US /bʌt ɪn/
UK /bʌt ɪn/
"butt in" picture
1.

to interrupt a conversation or activity without being invited or welcome

:
•
I hate it when people butt in when I'm talking.
•
He always tries to butt in on our plans.
:
interfereintrudemeddleinterruptbarge in
:
butte