Meaning of "33 left, 33 right"

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Jwa-33-U-33

33 left, 33 right좌33우33#욕설#관계/연애#19+#밈/유행어

This refers to specific sexual advice suggesting that, during intercourse, you should move not just in a straight line but also from side to side.

"At first, I didn't understand what it meant, but after discussing it with my partner, I realized that expressions like left 33, right 33 were meant to indicate a change in rhythm."