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Does the word Lu mean two people kissing?

surname

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(pictographic. Oracle bone inscriptions-shaped like the spine of a book, are the original words of "Mao". Original meaning: spine)

Same original meaning. The ancient word "Mao" [backbone]

Lu zhe, thorn also. Hieroglyphics. -"Shuo Wen"

Last name is Lu. -"Mandarin Zhou Yuxia". Note: "Lu Zhi is a talkative person."

Hips, hips, spine, waist and back. -"Urgent Articles". Yan Shigu's note: "Lu, the spine is also."

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"Lu" is a hieroglyph, and the spine looks like this. I haven't copied many others.

When you say "Lu", you mean kissing, probably because you read jokes about foreigners learning Chinese. You said that foreigners asked the teacher if they were kissing with their mouths open?