Maybe just "stoned" for the title.
then i think of weed.
Gave way, not gave away. I like how you did that line, falling down drama.
Nice, small, just right.
Do you really mean gave away? Or do you mean gave way, the usual way of saying it. I like it okay, the deviation from the norm, but either way "and crumbled" doesn't do anything; it's really kind of redundant. How about crumbled away?
I like what you're doing with the chalk names, but "were written" is stagnate. You don't need "were." And I think line 15 would sound better without "just." Easy sounds better than the more proper easily. I hope you won't let any grammarians talk you out of it.
as easy as names
on [our] sidewalk
Don't like 19--stagnate again. Why does nothing remain. Addressing the disappearance of the names in chalk--specific weathering--can enhance, rather than damage the metaphor.
Memories are iffy poetry things anyway, when stated, and you make it worse by getting too cute in your ending. Are you dead? Okay, N just feels like death. Not good enough. Imagine the imperceptible indentation left by the pressure of the chalk. Do something. Something else, please.
i am not on a roll today
Aw, it's Monday, that's all, PF