v. (1) to verbally berate into submission (publicly) (2) to physically rough up or convincingly administer authority over another person or thing (3) the exercise of legitimate authority, rules, or known customs which leaves a person or persons in a poor position and often disappointed.
n. the act of beating down (2) a disappointing and unexpected result to an attempted action
Verb: Mr. Smith beat down that dude who came up on his porch asking for money.
Noun: (1) I had to throw a beat down on that punk ass. (2) That was a beat down.