mackarangeejeezerlewheezler
a person who doesn’t know when to stop talking or being loud
'He’s a mackarangeejeezerlewheezler. He talks nonstop and won’t stop even when I tell him to.'
'My friend is a mackarangeejeezerlewheezler. He shouts in the hallway and won’t stop talking at lunch.'
'She’s so loud. Total mackarangeejeezerlewheezler.'