Obnoxiating
A person who's so loud and rude they’re like a trash can that’s been hit by a truck and also insulted.
My teacher called my friend ‘obnoxious’ after he told the principal his mom was ‘a lazy cow’ in front of the whole school.
The guy at the bar kept shouting about his ‘extremely important life’ while I was trying to finish my beer.
My little brother told my mom he was ‘a total waste of space’ and then ate her favorite cookies.