Wiktionary
vb. 1 To sound a rhythm on a percussion instrument such as a drum. 2 To extinguish 3 (context US English) to win by a narrow margin.
WordNet
Usage examples of "beat out".
While he rode, he beat out a staccato military rhythm on it with one hand, and it sounded somehow primitive and wild.
Hundreds of ships over the years had found themselves driven relentlessly into the gulf, unable to beat out against the wind to clear Cape St.
Not that I really minded seeing them get the crap beat out of them, but since I'm being paid by the head, I'm bound to lose money if one of them ends up with his head pounded into his shoes.
The clashing of automatic cymbals beat out with inexorable precision the rhythm of piercingly sounded melodies.
The sky was blackened with the smoke of their forges as their peoples beat out weapons of iron to spill the blood of my Angaraks upon the ground.
Now the sticks that Malinche has used to beat out the brains of Guatemoc shall be broken and burnt to cook the pot of the Teules.
The sticks that the Teules use to beat out the life of Tenoctitlan shall by them be broken one by one and cast into the fire to burn.