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2.
1) The best online game ever. In this game you are given a Mining Pod and you dig for minerals on mars.

In this game you can get various upgrades such as a bigger fuel tank, a better Drill, a better Radiator, etc. You can also buy dynamite, C4, excess fuel tanks, etc.

You can play this game at Xgenstudios

2) A large quantity of something such as money.
1) Me: Have you played Motherload?
Loser: OMG THAT GAME SUX! IF YEW PLAI IT YEW SUX!

*one minute second later someone finds the loser with a kife jammed in back*

2) I hit the motherload in Vegas!!!
by Grade-A April 06, 2005
 
1.
jackpot, big winnings or big findings
Today I went to an abandoned warehouse and boy did I hit the motherload. There was free stuff everywhere worth thousands of dollars.
by Anonymous May 23, 2003
 
3.
The specific load of sperm that results in impregnation, and the female becoming a mother, hence "Mother Load". If a woman has had sex more than once during her fertile period, it will be difficult to know exactly which load was the mother load.
I only had sex with her once so I knew the load I busted in her that night was the mother load.
by Bachaus October 04, 2009
 
4.
Motherload is one of the best flash games circulating on the Internet. Additionally Motherload is a valid excuse for taking the day off College, School, and Work etc.
Your friend - "Hey due why weren't you in School yesterday?"

You reply "Motherload"

The conversation ends there.
by Jasta111 November 21, 2007
 
5.
The slurry excreted from a female when she has a massive period.
Wade: The girls were real bitches at tea tonight.

Ian: Must be the mother load.
by johnbarker November 01, 2004
 
6.
the biggest, the best - nothing even compares to something that is the {motherload}
Why get those small breast implants, when you can get the motherload of all implants. Helps if you use the phrase "motherload of all..."

I got pelted with a motherload of potatoes.
by JillnJulie November 19, 2006
 
7.
Where a person lays there hand flat, then the person jabs the ends of there fingers into a persons side quickly (between the armpit and the hip).
side jab
Motherload
by RipJaw April 19, 2011