In any case, this is used by children who think that they are cool by using these kinds of bastardizations in normal instant messaging conversations.
-You mean you drove your mother's transportation device?
"Mah" is one the most versatile words in the english language. It can express almost anything as long as it is pronounced, emphasized, and coreographed correctly.
Mah is a celebration by two or more bros that typically involves drinking, Mario Kart, and life talks.
It is best celebrated in a starlit field or other outdoor location, although one's basement may be used as a substitute during the winter months.
As made apparent by the name, MAH must be celebrated past midnight.