look up any word, like sparkle pony:
 
1.
A disproportionate number of females to males. Traditionally used in zoological context, it can also apply to various social settings where there is an unbalanced female/male ratio. A monarsenous in humans typically only exists for a short period of time as once males hear of the occurrence, the opposite occurs.
Dude, there's a monarsenous of females at Cambus tonight. You have to get here now.
by Mellifluous_logophile June 10, 2014