Did you know that in Illaoi's culture, eating a fruit in front of someone is considered an insult

Probably just someone vandalized the page to make that joke.

Her Wiki page has been vandalized quite a bit recently. Her ult was hentai assault for a few days, and more subtlety all instances of the word "Tentacles" were replaced with "Hentaicles"

And Gangplank be like:

: don't worry baby, everything is going to be K.

Where are getting that factoid about eating fruit being an insult?