Three kilograms of cocaine. A key is standard slang for a kilogram of drugs, most often cocaine. By stating "by the three," one is saying that they buy cocaine 3 kilograms at a time with the intention of dealing. The following lines show this more. The statement of a Louis Nap Sack is in reference to a Louis Vuitton bag where he holds all of the cocaine or "work" to be dealt.
The other definition for key by the three is wrong, although the "when I chirp shorty chirp back" is in reference to cell phones.
Key by the three, when I chirp shorty chirp back.
Louis Nap Sack
Where I'm holding all the work at.
Smog like pollution that comes from the farts of fart loving hybrid car owners. Smug from San Fransisco and Hollywood that meets with smug from Colorado can create extreme storms that kill thousands of actors and kenny.
(South Park Creation)
You shouldn't have written that gay little song that got everyone to buy hybrid cars and produce smug, now should you?