1) A gathering of one group of people, where
you beat the crap out of somebody that is not feeling well or is slightly
depressed and then pour large amounts of water on him or her to wash away the
depression."
2) The act of De-depressing
"That basement beat-down really helped that kid
in the long run."
"People should sign up to go to a basement beat-down instead of therapy."
"
The basement beat-down was very
successful. We beat the sickness right out of him and washed it away with water."