1: The Best of the Best (Not the movie) of any given genre.
2: Descriptive adjective for anything 1 or more levels higher than whatever God could feasibly create.
3: SLANG - Used as a descriptive word for how good a party was last night by someone that hasn't completely slept off their drunk yet.
Ex 1: Quote: Princess Bride is such a good movie!
Reply: The awesomnest.
Ex 2: Quote: Princess Bride? Are you kidding? God is the awesomenest!
Reply: If you talk stupid shit about The Princess Bride again I'll cut your fucking tongue out of your neck... just sayin'...
Ex 3: Quote: Dude... you mist a fuckin' awesomenest party lasht night...
Reply: Heh... I was there... You wouldn't stop doing your Fezzik imitation and basically made a complete ass of yourself.