I just learned that in Spanish-speaking countries in South America, their version of “righty tighty, lefty loosy” is “la derecha oprime y la izquierda libera”, which literally translates to “the right oppresses and the left liberates”.

That, my friends, is the most dead-on mnemonic that has ever been thought up.

@OGjester related: Japanese kanji for left and right are 左 and 右. The radicals at the bottom (工 and 口) by themselves mean “craft/work” and “mouth”, respectively. A teacher came up with a mnemonic saying the left are the workers, and the right are the bosses yelling at workers.
@gbuela the right being depicted by “mouth” has a lot of deep meaning. It’s funny how these same themes exist in so many languages and cultures, as if it’s a universal truth.