expertsplain 

When someone who actually knows something and has verifiable expertise of a specific subject has the bad taste and audacity to challenge the uninformed, often emotional, irrational, and explicitly outspoken world view of someone who has every right to not have their cheap opinions disproved by facts and other similar trifles.

Tod is such an a**. He expertsplained to me why the Earth is most likely not shaped like a doughnut. He even used facts, logic and empirical indicators. There was even source material! Yuck...

expertsplain by Sven Bockskaegg January 23, 2020