cook up
Pronunciation:
verb
Definitions
(of food or chemical substances) To prepare by cooking or heating.
Example: Let me cook up some eggs and bacon before you go.
To manufacture; to invent (something, often a deceit or falsehood).
Example: He really cooked up a good one this time, something about an airline disaster.
To prepare a heroin dose by heating.
To manufacture a significant amount of illegal drugs (LSD, meth, etc.)