Researchers found that marijuana has the lowest risk of mortality and is safer than the commonly used alcohol and tobacco as well as the rest of the drugs in the study. They determined the risk of mortality by comparing the lethal dose of each substance with a commonly used amount of each substance.
[Italian (partial translation of French pinot gris; see Pinot Gris) : French pinot, Pinot; see Pinot + Italian grigio, gray (of Germanic origin; akin to English gray).]
However, as a master of redundancy, I would say that zig-a-zig is the sound of a stringed instrument being played, probably by plucking. The earliest use of it I know is the song by Camille Saint-SaÃ«ns, written in 1872, entitled Danse Macabre with text by Henri Cazalis. The first phrase of the song is Zig and zig and zig.