Happy Tree Day Edit Meaning

1.

When you are talking to someone and they don't happen to hear you or are spacing out, you say this phrase. It implies that they are like a tree and are impervious to their surroundings. Then, hopefully, they'll hear it and start paying attention.

I don't know if this phrase is used in English but I know it is used in Spanish. My Colombian friend used this when I didn't know she was talking to me. However, she said it in Spanish: "Feliz Dia del Arbol"

Person A: blahblahblah

Person B: *spacing out*

Person A: Happy tree day!

See space out, vegetate, unaware, oblivious