The action of convincing someone to take violent action in order to remove someone in power who is above said person.
"This office needs a real leader someone who can take charge and cut out the middle man *drops knife* whoops" "Dude you are totally Lady Macbething me right now!!"
by 221B Bakerstreet May 27, 2014
Washing your hands after masturbating on your period.
"What, will these hands ne'er be clean?... Here's the smell of the blood still: all the perfumes of Arabia will not sweeten this little hand... Wash your hands, put on your nightgown; look not so pale... To bed, to bed, to bed!" (Lady Macbeth Lady Macbething, Macbeth, Act 5, Scene 1)
by Lady MB November 20, 2016
An unpleasant, cruel, or maliciously insane woman. The female incarnation of Evil Itself.

Often used to refer to female math teachers.

Taken from the the unpleasant character in Shakespeare's Macbeth.
Student: Who do you have for math next semester?
Friend: Mrs. Whitman, you?
Student: Roberts. Wait--Did you say Whitman?
Friend: Yeah, why?
Student: Watch out, man. She's like freaking Lady Macbeth.
by Lady Chevalier May 12, 2005
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What you call someone when they constantly wash their hands.
Kayleigh - *Washes hands for 50th time in 4 hours*
Me - "Woah! Lady Macbeth, get out the sink!"
by DEllis April 23, 2006
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when you get someone's cum on your hands and no matter how much you wash you just can't seem to get that damn smell out
Ugh, I have a total Lady Macbeth going on after that hookup, even though I showered twice!
by doorfish July 2, 2010
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