What does A-3-5-O mean?

A-3-5-O meaning in Urban Dictionary

Acronym accustomed describe a particular subset for the female populace who will be often unpleasant to the hearing ear and also to the clear head. Acronym means: "Angry 35 year old". These A350's are women who tend to be mad they are not cheerfully hitched so that they're simply a drag...but they believe they truly are hot.