1.) A small amount of liquid. Like raindrops falling on your head. 2.) When an object falls vertically. As in mic drop. 3.) In music, as in drop that bass or drop that beat like an ugly baby! It's when the change of rhythm or bass line occurs in a song. When the bass and rhythm hits the hardest and your head gets to bobbing uncontrollably.
Sixteen Candles via Youtube MovieClips
Shorten to "auto" this motor vehicle has evolved over the years from a horse and buggy to a horseless carriage. Based on the Ancient Greek word, autós meaning "self" and the Latin word, mobilis meaning "movable".