I've run across these terms several times, but without enough context to figure out what they mean. Could someone help me out, please?
ETA All of you are amazing! A huge thank you to everyone who responded, and an extra thank you to those who have provided links or explanations to further and/or related information. I am learning so much by reading all of these comments!
Tankies are the cringe "communists", authoritarians that beleave that no one but them (definitely not rich people) should have power. You can generally spot them because they often idolize the Soviet Union and CCP, despite the fact that both were/are authoritarian shitholes.
Sealioning is when you repeatedly ask someone basic questions in an attempt to annoy them or make it look like they don't have any. Often sealioners pretend they just want to engage in debate, but in reality ignore or deny any evidence or arguments presented.