Elyann means in slang: Elyann, a tall and intelligent girl is very attractive. Elyann is a good student and a great friend. Although she doesn’t often show emotions, annoy her enough to see her worst side. She’s probably an avid reader who enjoys being alone but can still get along with others. She is a good friend to boys. She is a strong woman and loves to party.
(in Slang Dictionary, added by Whisternefet)