Meaning of "Machine Gun" by Sara Bareilles

The lyrics of "Machine Gun" portray a one-sided, toxic relationship where one person is constantly under attack by someone who seems to enjoy being their enemy. The protagonist of the song is pleading with this person to let go of their anger and hostility, urging them to give up their metaphorical "machine gun" of hurtful words and aggression. The lyrics highlight the pain and loneliness of the person being criticized, as well as the futility of trying to reason with someone who seems to be set on being antagonistic. The song's message is one of calling for compassion, understanding, and empathy in relationships, rather than using words as weapons to harm others.