Weed: *gets hit by his own power*
Cop: Wait, shouldn’t you be resistant to your own element?
Weed: Are you resistant to bullets when you shoot a gun?
Weed: *gets hit by his own power*
Cop: Wait, shouldn’t you be resistant to your own element?
Weed: Are you resistant to bullets when you shoot a gun?
Listen up, buttercup. This joke is based on the fantasy that weed has superpowers and also is a person. The joke is that the weed-person gets hit by their own power. When a cop is surprised that the weed-person isn't immune to his own power, the weed-person responds with a metaphor about how people who shoot guns aren't immune to bullets. Get it, dummy?