A phrase, origin of which is in Hebrew. It's equivalent to "what ever man" but man is translated to "gever" in hebrew. it's usually used when someone proposes to you something and you just don't care.
He: Hey man let's kick his ass outa here
Me: ahhh...Leave me in you mother
He: Hey man Call me up later, I have something important to tell you.
Me: What Ever Gever...