а> вмешиваться (в разговор) When someone else is talking, don't butt in (to their conversation), it's rude. Never butt in on anyone else's quarrel. б> мешать, стараясь помочь I'd have got the job finished in time if he hadn't come butting in on my work with his unwanted advice.
BUTT IN
Англо-русский перевод BUTT IN
English-Russian Muller's dictionary 24 edition. Англо-Русский словарь Мюллера 24 редакция. 2012