Top Definition
preparing for a shot of heroin
Sick Boy: Say something Mark.
{shouting}
Sick Boy: Fucking say something, huh?
Mark "Rent-boy" Renton: I'm cooking up.
- Trainspotting (film)
by Harventh February 07, 2008
1 more definition
To make deal with sb,usually underground or illegal.
what do you got cooking up with him?
by louis_14 November 17, 2007

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