There are several synonyms for the phrase "butt-ins." Some of these include "interferences," "interruptions," "interlopers," "intrusions," and "meddlings." Each of these words conveys the idea of someone impeding or disrupting an activity or conversation that they have no business being a part of. These words can be used in a variety of contexts, including the workplace, social interactions, and everyday life. Regardless of the situation, the use of these synonyms can help convey a sense of irritation, frustration, or annoyance with someone who is trying to butt into something that is not their business.