I refer to cannabis as cannabis in formal conversation. Never Marijuana, since I don't speak Spanish. Slang terms in informal occasions include "pot" and "weed". I never say "dope" (Used by many anti-cannabis activists)

Being under the influence of cannabis, I called that "high", "stoned", or "blitzed", depending on how powerful the effects are.

Average cannabis I refer to as "middies" or "high middies", quality cannabis I refer to as "chronic", "hydro", or "super dro" (A dealer I know in the area refers to some very high quality cannabis as this). I may also use "brand" names for cannabis (White Rhino, Northern Lights, etc.)

I use cannabis cigarettes in formal occasions, but the slang I use is "joint" or "spliff". Either cannabis cigars or "blunts". etc. etc.