They let you think you won so you’ll shut up.
Then they walk away and let you bask in your ignorance.
And laugh about your arrogance.
And tell everyone what a dumb, loudmouthed jerk you are.
Very true. But I, being a loud-mouthed jerk, have already met all these people and they've come to their own conclusions. If they think I'm a jerk, they already know. If they think I'm a good and knowledgeable fellow, they know that too. Either way, that a-hole that goes around slamming me is going to be the ultimate loser.
Walk proud. You won.