It is a Filipino word derived from the English word "evil" but Ivel does not really mean being bad. It is a word of expression to someone who is very funny or cheeky. This is usually used by people to call their friends when they find them so playful or very naughty. People can say this as an expression to any situation that they find so funny.
"Hey, I pranked Sami last night."
"HAHAAHAHAHA. Ivel ka!"
Is a person of so much character. She is the type of person who tends to talk a lot and tells stories to friends and to people whom she just met. She is very cheerful and a happy go lucky person but she is also a very soft person that even the smallest negative thing about her can really hurt her.
Wow, you are very fun to be with, you're an Elmay. Nice to meet you.