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A woman who can be described as 'clingy', 'psycho', 'psycho-clingy' and 'immature.' Usually a young girl who's just barely old enough to drink who's chasing after an older (late 20's to early 30's) man who was just looking for a fling.

She's referred to as 'Lady Voldemort' because speaking her name out loud is considered bad luck.

Ex.) Alicia Silverstone's character in 'The Crush'
Dude, don't even say her name! She's a Lady Voldemort! You say her name out loud she'll appear out of nowhere! Just say 'She who shall not be named' and leave it at that...
by msbae January 08, 2012
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