(for women), the act of slashing one's own hand and/or fingers with a broken mirror, old razor blade, box cutter or similar device, then using that hand to masturbate. The bloody fingers or cutting implement are used to "stab" into any erogenous zone. Similar to redrum slappy.
Angelina covered up last night's redrum stabby with the old "that time of the month" excuse.
by suspicious package February 05, 2007