Is marijuana smoke flammible/combustible

Anything is combustible with the right mix of oxygen and enough heat. But I seriously doubt you're going to ignite the marijuana smoke filling your bedroom. Or your lungs if that's what you're worried about.
You've heard the term "rapid oxidation"? Nothing really just burns up and goes away. What it does is change chemical form. The ashes are still there, it's just not a piece of wood anymore. A lot of it went up in vapor, and still some is left as residue.
Complete combustion would result in water and inert gas. Incomplete combustion leaves other chemicals behind. Think of a fire that ran out of oxygen, or lost it's heat source. If you were to add the correct amount of oxygen, and apply enough heat, you could finish oxidizing the left overs. But water and inert gas doesn't sound like a very good high.
Am I making any sense, or is this just another babbling wake and bake?