An "old school" term referring to the speaker system in one's trunk.

An action, depends on race. See example

circa 1970s American slang

1) to party
2) to have sex
3) to dance
4) to abandon nonsense and confront

an expresssion that arnold schwarzenegger likes to use a lot

To begin foreplay, sex...
Usually in association with cutting all the stupid games and getting straight onto some physical action.

During the disco and funk era, in many venues the dance floor was often located below the seating area, so to "get down" was to go down to the dance floor. Originally meant in reference to dancing, eventually leading to sexual implications. However, it also means "to be cool with".
A most useful term.

Other forms: Get down, gettin down, getting down.
There is a more recent version of the sexual meaning is "going down (town)".

the act of figthing

An Internet meme that started in Japan, featuring people dancing extremely fast with odd positions, paired with Hirose Kohmi's song Promise. It started when a user of Nico Nico Douga, a Japanese video sharing website like YouTube, posted a video of a glitch in the Nintendo 64 game 007 Goldeneye, where, if the game ROM was partially removed from the console (if the cartridge wasn't fully in) the characters, at seemingly random moments, would spaz out, their models moving to random poses every frame. Another Nico Nico Douga user then put the song Promise to the glitch video, with the phrase "Get Down!" playing first, as the characters started glitching, giving the appearance of random dancing. Someone else then created an anime-style animation of a character called Nitori dancing to the song, showing her spinning in midair to mimic the glitch. Users started taking dozens of pictures of themselves in random poses, put together to form an animation, similar to stop-motion. It's still spreading as of early May 2010, with doze...