Definition: offensively self-assertive.

What can one say about Bumptious?

He thinks he’s a leader when he’s really just a pain in the proverbial.

He’s the bloke at the barbeque that has to cook the snags because only he knows the right way to turn them.

He’s that uncle you invite round for Christmas lunch out of duty but can’t wait for him to leave.

He’s never wrong.

You’re never right.

You’ll never win an argument with him because reason just drowned in his narcissistic well of righteousness.

And it cannot be revived.

Bumptious, servant of himself.