1. A short-hand for a person of extraordinary talent, giftedness, or other important qualities, used in both casual and/or professional environments to easily convey the fact that the person in question has exceeded the standards and/or requirements put in place in their particular field, (eg, musical abilities, mathematical abilities, general academics, etc.)
Origin: Latin, from yelslekium grandiosium, a flower that boasts an extraordinary aromatically complex smell
Symptoms typically involve lack of hand-eye coordination, a severely itchy nose, random loss of motor skills causing general speech to be difficult and generally spazziness. Infected individuals are often categorized as "awkward". Predominantly affects young females, but it is highly contagious and it is known to spread to males who have been in the same room as an infected female.
Example 1: She inhaled and she started choking, she must have the Yelsha Syndrome.
Example 2: It was only a matter of time before he contracted it, he's her best friend.
An Australian word started at Xavier College, Melbourne that means 'as if', and denotes disbelief. Can be used widely. Can also be used instead of 'rolled','wrecked' or 'owned'
Tim: I could have any girl in this room.
Matt: Yelse! (or Yelse you could).