Definition 1 of 1
Originating from two Marathi words - Maan (Neck) and Dol (Nod). The nodding of the neck is widely believed to indicate a willingness to compromise, let go of any ill-will or anger. The use of this word became popular among street thugs in the late 80s and early 90s in Mumbai, on the advice of their shrinks.
Early users of this term were adept at doing various things to your neck.