SolarT said:get blasted and watch an old Cheech and Chong movie - then you will have a grasp of why they call it Dope.
dope is a general term for anything that dopes you. and cheech and chong are imaginary characters made up by a couple of hollywood comedians, they do not represent shit besides two "funny" dudes; but it seems they are roll models or something nowdays... if you get like cheech and chong due to smoke, you better quit or master your high.