Oniel means someone who is mostly kindhearted, generous and ambitious. He always tries to strive for the best but is sometimes taken for granted because of his kindness and gullibleness. Sometimes he may act like a hypocrite, a push-over or doormat and he may think he's superior to otjetst and he tends to act competitive. But overall he is a good person.
Example 1: Anna! You need to stand up for yourself at times. Stop being such an oniel.

Example 2: Dude... Your wife is the breadwinner of the house and you're not helping her so much. I'm getting tired of these Oniels treating their wives like this no wonder they cheat.

Example 3: Anna, is so kind amd oblivious to certain things
. She is such an Oniel that's why they treat her like a fool sometimes.
by The anonymous X February 4, 2018
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An alien lifeform, or one who studies the extraterrestrial beings. Sean Oniell can be considered to be an expert because of his first hand experience with UFO's. Don't be confused with the common sex move the SHAWN ONEIL in which two gay lovers put sand in each other's buttcracks and try to scoop it out.
Man, he looks like a sean oniell, because of his huge head!
by MIckJaGGER November 11, 2006
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