Hey man where'd you get those shoes? They're dopen

X: I had this great highdea last night
Y: You clearly were philosopher stoned.

I think I’ll take the time to dopen my toolbox this weekend.

I need you to dopen this tungsten while I go to the beer store.

Generally proclaimed in warning of potential loss of dope when a bag has accidentally been left open and is precariously placed. "Dopen!"
Or

Is that bag still dopen?
Or

I was definantly slippin cuz I left my shit dopen and the whole thing ended up on the floor!