When the music drops, the beat starts kicking in, the song hits the point when it can shoot a shiver down your spine

The advantage normally in a fight, the final blow.

The exact moment when you realize you're about to have diarrhea. Derived from the way your asshole "drops" right before you shit your pants.

That point during a shit when it all comes rushing out. Also see The Flop

A drop: A small mass of liquid just large enough to hold its own weight via surface tension, usually one that falls from a source of liquid.

- The space or distance below a cliff or other high position into which someone or something could fall.

In more simple words.

It's the part that goes "WOBWOOOOOBWOBWOBWOBDEWDEWDEWJ­AJAJAJADEWDEWWOBWOBWOBOSAMAISF­INALLYDEADWOBWOBWOBWOBIMCUMMIN­JAJAJAJAJA!

level past leaned usually one person at the party is on the drop by half way through.

Person who has more than way to much to drink and smoke.
The Usaul drop recipe includes 40oz of king cobra's, 2 whoodoo's, and 4 shots of bacardi 151.

When you fall asleep out of nowhere