Obstrompulous - Big and loud enough to wake up the dead. You say it when you

Big and loud enough to wake up the dead. You say it when you’re trying to sound cool but just sound dumb.

My dad called the neighbor 'obstropulous' because he played loud music at 2 a. m.

I used 'obstropulous' in a speech and my class laughed at me.

My sister said my cat was 'obstropulous' because it knocked over my cereal.