An acronym originally standing for "Babson International Student Organization", which now refers to an international student usually from european or latin-american descent that is engaged in the international metropolitan lifestyle.
"The biso's all got a few tables at Rumor tonight, want to come?"
by Christan Hansonn February 7, 2008
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Thicc and blacker than the night sky.
That girl is so biso.
by daddybigb February 16, 2018
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A special order at McDonalds which contains:

1x Deluxe Double Quarter Pounder with Cheese

1x Large Fries

1x Coca Cola

20x Chicken Nuggets

2x Apple Pies

and occasionally 5 Hashbrowns all doused in Sweet and Sour Sauce.
Damn dude the last dude who ate a biso special in one go got gout and lactose intolerance.
by painpeko May 14, 2021
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A special order at McDonalds which contains:

1x Deluxe Double Quarter Pounder with Cheese

1x Large Fries

1x Coca Cola

20x Chicken Nuggets

2x Apple Pies

and occasionally 5 Hashbrowns all doused in Sweet and Sour Sauce.
Damn dude the last dude who ate a biso spesh in one go got gout and lactose intolerance.
by xdethboix420x May 19, 2021
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