The phrase (likely from the Spanish ay, "oh") is often spelled "Ay-yi-yi!"
The nautical phrase is "aye aye", and the small lemur species is the same (aye-aye).
Shonen-Ai means "boy love" and implies a love relationship between two boys, whereas Shoujo-Ai means "girl love" and is a romantic relationship between girls. Both of these types of series are...