the only highway in the state of Georgia with a toll, between Buckhead and the northern part of the I-285 loop. 50 cents. This highway was built in part to ease traffic for the 1996 olympics in Atlanta. This highway is notorious for rush hour traffic, the local TV stations call their traffic reports "Surviving GA 400"

The act of having to much Powerthirst.

The amount of babies one will spawn after consuming the popular energy drink, Powerthirst.

Taking 400ug LSD with your psychonaut friends and having a chill time tripping balls.

Supposedly making out for 20 minutes burns 400 calories.

Actually, 400 Kilocalories, but food companies thought it would be easier to denote those things we burn as calories, so what the hell. Apparently metric prefixes are fucking scary.

A State of Trance 400 was a 72 hour celebration of Armin Van Buuren's 400th radio show. It will go down as one of the greatest weekends in trance music history. This event set the bar so high that it may be tough for even Armin to come up with something more memorable.

Also known as the Alpharetta Autobon. (Alpharetta is a city that 400 runs through). It's called an autobon cause nobody follows the speed limit on it. I admit I will fly down 400