man (mahn) noun — plural men (mehn)
: an adult male human being
Example: Hundreds of men, women and children; a four-man team

tantrum (tan-truhm) noun
: a violent demonstration of rage or frustration; a sudden burst of ill temper.

mantrum (mahn-truhm) noun
: a violent demonstratopn of rage or frustration from a man, usually after being subjected to hours on end of aimless wandering through a shopping complex on the insistance of spouse / partner.
Example: Poor guy... he just broke and had a mantrum!

I have seen about one per day. It starts with a poor defenseless man, being dragged around the shopping centre all day to 'shop' by an addicted wife. Now, at this time it is important to clarify the different definitions of the word 'shopping' from both male and female perspectives.

Shopping (shŏp-ping)verb -female
: the action of aimlessly wandering from shop to shop, picking up every single item in the store and examining it before returning it to its original position, and moving on to the next item / store.
Example: "I went shopping for six hours today and bought a pair of shoes."

Shopping (shŏp-ping)verb -male
: a high precision mission, whereby one enters the shopping complex and the store via the shortest possible rout, purchases required items, and exits the complex again via shortest possible rout - to purchase without distraction.
Example: I went shopping on the way home from work today because I needed new shoes."

The above definitions are the EXACT reasons men have mantrums after afternoons of shopping. I could identify with the latest mantrum thrower at Woolworths yesterday.

"We just need to have a look in this aisle"

"You always do this. You need to learn to plan things, and not just walk around wasting time without thinking."

So true brother. I hear you. Men are the hunters, Women the gatherers. We get in, attack quickly and return home. Women, you are free to browse and waste time. Just do it when we are not around. There is no shame in having a mantrum after hours of pointless drawn out shopping. There is no shame here brother, you are among friends...

THE DRIVING POST NOTE:
Another thing I have noticed. I know know why most Men are better drivers than Women. It all comes from the humble shopping trolley.

Next time you are in the supermarket, look at the difference between Men and Women driving shopping trolleys. Women are far more likely to be erratic in their trolley behaviour... veering side to side, failing to keep left, likely to suddenly stop without warning, bumping into other trolleys, and frequently leaving their trolley (and at times children) unattended.

Men on the other hand tend to keep to the left, are more likely to maintain a constant speed whilst grabbing items from the shelves, display a more accute awareness of trolleys and people around them, and are less likely to leave a trolley blocking the middle of the aisle.

Disclaimer:
And before all you women jump down my throat... I said "Most" women. That means if you feel the urge to kick me in the 'little Wills' next time you see me... I obviously wasn't talking about you.