A verb. To day-time booze, it usually takes place on Sunday-Fundays and involves the consumption of champagne in some capacity.
"My friends and I all got together and decided to mamosa up on the beach with some gas-station champagne."
by Betzel April 04, 2010
Making a Mamosa in the hood. No champagne? Substitute it with malt liquor.
1 Part Malt Liquor
2 Part Orange Juice
1 Part Malt Liquor
2 Part Orange Juice
What will make my orange juice taste better for breakfast..? Add some malt liquor and make a thug Mamosa.
by WEEESssss February 11, 2012