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1.
A condition existing in women, consisting of a state of constant irritation and an excessive amount of anger. usually directed at males that are in close relationship with the victim.

PMS symptoms that don't seem to go away.
your girlfriend is always so mean to you. she must have perma-period.
by fliggs December 04, 2007
 
2.
a term for a girl's body function that seems to constantly trap her in that "special time of month".
There isn't a day she isn't bitchy..she must be on a permaperiod.
by Skylar055 January 25, 2009