Hysteria or an emotional core meltdown or freakout brought on by the behavior of one's male spouse, significant other, fiance, boyfriend, lover, or booty call.
When Derek stood Janine up she had a maneurysm and you could hear her at the end of the block.
God, don't have a maneurysm; I'm sure he'll call you.
The result of the things men will say or do that cause their partner to become very annoyed/frustrated/angry, to the point where said partner appears to undergo a slight stroke; visibly pausing and wincing painfully, with the occasional accompanying incoherent murmur. Though often a result of manuriosity, can be triggered by other factors such as callous, selfish, thoughtless or dickish behaviour, bad puns and lame jokes.
Her: I'm out of tampons, can you pick some up for me on the way home?
Him: Just make some out of cotton balls and dental floss.
or
Her: I fell into the toilet cause you left the seat up again!
A male version of the traditionally female hissy fit. Maneurysms are often disproportionately exaggerated and/or hostile responses to fairly calm and un-hostile situations.
"Did you see Reginald III at the soiree this Wednesday past?"
"I most certainly did. He had a complete and utter maneurysm after Fifi spilled her sparkling cider on his business-casual shirt."