to be absolutely worthless, and dull. boring and lifeless. it is the adjective for any person or situation that you are completely bored with.
Dude lets get out of here, this mall is beatsauce.
basically an everyday kevin federline. the epitomy of a lazy good for nothing man. will say he is committed to something but actually will never act on his committment. He will not show up on time, or will cancel his arrival entirely. To sum it up he will ride on someones coat tails as long as he can.
That guy is such a k foo, he never cares about anything except himself.