Top Definition
A shot of Jameson dropped into a glass of orange juice, taken in bomb form. Very popular in Chicago.
Round of Jamosas for me and my friends bar keep.
by BlackBabyJesus June 04, 2010
1 more definition
When your standard Mimosa just isn't going to cut it and you need to add a shot of Jameson to it.
After seeing the girl I hooked up last night, a standard mimosa just isn't going to cut it, I'm going to need a stiff Jamosa ASAP.
by BostonBoozeBag December 05, 2014

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