Meaning

• (of food or chemical substances) To prepare by cooking or heating.

  "Let me cook up some eggs and bacon before you go."

• To manufacture; to invent (something, often a deceit or falsehood).

  "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.)