For decades, the pineapple has been a symbol of hospitality, friendship, and welcomeness. But the meaning of an upside-down pineapple is a bit different.
upside-down (adv.) "inverted, with the upper part hindermost; into an opposite state of what is normal; into a state of disorder;" late 15c., earlier upsadoun (late 14c.), up so down (early 14c.); see upside (n.) + down (adv.). The so here perhaps meaning "as if." Also ...
Upside down character table OriginaɐFlipped Latin “a” – used as a symbol in the International Phonetic Alphabet (IPA)bqJust the letter “q”cɔLatin Small Letter Open “o” — another symbol from the IPAdpJust the letter “p”eǝAn extension of the Latin alphabet used in the Pan...