Aloha

Is it proper to say "Aloha" when saying goodbye?

Source: tatoeba (5288794)

Layla worked at a strip joint called Aloha.

Source: tatoeba (6472576)

An image of a fat American tourist wearing an aloha shirt pops up.

Source: tatoeba (6759748)

I travelled to multiethnic walkable Singapore on my way to Bali. There, it was a land of four official languages, Mandarin, Malay, Tamil, and English. I liked the food there a lot, including "cumi-cumi" or squid served in a clay hotpot. I saw dark Tamil people eating with hands on big banana leaves. Hawkers in Malay shrieked, "Makan! Makan!" (Eat! Eat!). Vendors sold big funny-looking lotus flowers. Some men were wearing colourful aloha shirts. My quaint hotel was decorated in 19th-century colonial Sino-British fashion. Later, from the Web, I tried job-hunting in the city-state, because it looked like a comfortable place.

Source: tatoeba (11034643)