Single K.O.

I've found something
No one else is looking for
I've found something
That there's no use for
And] what's more
I'm keeping it to myself
I'm leaning over backwards
Shoulders pressed to the floor
I'm leaning over backwards
Shoulders pressed to the door
Two falls or one submission
Or a single K.O.
Two falls or one submission
Or a single K.O.
But what's one submission
Amongst friends?