Lindsay Lohan wants to lose her closest confidante - her SCRAM - and pronto.

RadarOnline.com has learned the 24-year-old Mean Girls star is whining about the booze detector that is permanently fixed to her ankle, even though she is living a clean and sober life at the Betty Ford Centre in Rancho Mirage, California.

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"Lindsay wants her alcohol monitoring device off - now," a source close to the anxious actress told RadarOnline.com, exclusively.