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When a mentally unstable female is on her period.
"That girl is acting SO hormental"
by anonymous69420 February 21, 2013
1 0
The combination of a hormone imbalance and a mental disorder. Most often diagnosed in women.
Lisa's constant ranting and raving is most likely a result of her being hormental.

Her memory loss could be caused by the disorder known as hormentalness.

People cutting in line at your favorite fast food restaurant could cause you to become hormental.
by The Drapinator November 18, 2011
4 0