The third definition is spot on for me.
A person who can adapt and fit in to any group or situation and make it work to their advantage. Be it defensive, predatory, or for camaraderie.
Alpha's hate these dude, as they basically do whatever they want and completely get away with it.
Even though it was the 3rd definition down but yeah that's the reason for my username.
Second definition:
(v.) to take on the personality of the person you're with at the moment. this is either done subconsciously, or as a sad attempt to make people like you
(n.) a person who chameleons on a regular basis (i.e. they act different for every person they hang out with)
Top Definition:
A person who adjusts themselves to fit into whatever happens to be cool at the moment. Includes their appearance, their interests, their opinions, their personalities. often reffered to as 'scenesters' 'try-too-hards' or 'idiots'.
Oh snaps.
My real name gave these results and of course it's true!
The best friend you can have. He's smart, creative, funny, good-looking, charming.
He has well-defined moral values. He is serious and reliable. He will help you at any time.
If you meet him, he will make your life much better.
Although impulsive and difficult at times, he is worth putting up with this.
Cherish him