That would be the Ugandan Knuckles meme. The reason it gets associated with the Mandalorian is because of them saying "this is the way." Ugandan Knuckles is a meme that started in the VR chat community where people started making that character their avatar and always running around in crowds, mobbing people and asking them "do you know the way?" among other things.
I remember I just had a sleepover, I was about ten or eleven and my mom made my friends and I pancakes. She wanted to make Mickey Mouse Pancakes. Seemed like it would be easy because it's basically three circles right but the ears got deformed and it turned into a Yoda pancakes. That was before the prequels and Disney trilogy so of course my friends and I would have preferred Yoda pancakes over Mickey pancakes so that became something my mom replicated to great applause.