The powder made from grinding seashells found on the beaches and riverbanks of Nepal to a fine powder. Can be snorted, smoked, or injected, but is most commonly snorted.

Giving a high similar to that of cocaine, banquo is beginning to find its way to big-name Hollywood and Miami parties. Prices are usually equal to that of cocaine, but because of its potency banquo is often heavily cut. Uncut banquo ranges from 6x to 7x the price of uncut cocaine.

Banquo is gaining popularity because of its relatively recent emergence in Western culture and as such has not yet been widely recognized by drug enforcement agencies.

Banquo is thought to have taken its name from the character of the same name in Shakesphere's play, Macbeth. In the play, prophecy has said Banquo will one day become king, but it is later prophesied by the three witches that it will not be Banquo, but instead his descendants will be. Similarly, many believe that banquo cannot become the "king" of illicit substances due to its extreme potency, but instead a more stable, though weaker, product will be derived from it.
Person 1: Have you shipped that banquo yet? I'm running low and my distributors are starting to get agitated.

Person 2: Yeah, I sent it UPS overnight an hour ago.
by PineTree June 12, 2009
A word used to describe, refer to, and smoke marijuana.
"BANQUO" - lets go smoke some weed.
by ZAME October 1, 2006