Mother of spouse. Self rightous, beastly, female entity. Master of deception. Often dyes her hair in order to reflect a younger age. One who professes to be all knowing. She Who is Evil. The Heartless One.
After his mother in law's week-long visit, Rob had to call an excorcist and bathe himself in Holy Water to rid his home of the evil presence that she left behind.
by Super Gerbil! September 4, 2003
Get the mother in lawmug. by Shaun August 21, 2003
Get the mother in lawmug. Even driving my mother-in-law to the grocery store was a painfully horrible five minutes of my life.
by James October 31, 2003
Get the mother in lawmug. by Muu August 30, 2004
Get the mother in lawmug. the annoying "hang nail" that pisses you off and will not heal on the side your finger nail/cuticle.
by SexyTexan January 6, 2012
Get the mother in lawmug.