To let someone "cookâ means to let someone do their thing. It's another way of saying âGive them some space, they're on to something.â
But, to smoke is a slower, gradual build-up to the eventual yet impressive final product - low heat, long hours.
Cooking is shorter with quicker results, while smoking is longer with a result that just as satisfying. Smoking requires more patience from the audience than cooking.
Example 1
Person A: I don't get it, when will this get good? Nothing's happening yet!
Person B: Nah... she's smoking, give her a sec.
Example 2
Person Y: He smoked that shit! Shouldn't have underestimated him.
Person Z: Trueee