twist the whistle

Smoking "crack"and/or "meth" ..methamphetamine from a glass pipe. While working as a firefighter/paramedic I asked a patient if he was under the influence of drugs or alcohol? He replied I "twisted the whistle" a few times today. I replied with... "twist the whistle"? He further replied... yeah you know smoke crack! "Twist the whistle, twist-ed, twist-ing".