Mad oo
This is a term used by Nigerians to express surprise or excitement
guy1:ASUU has called off the strike
guy2:Mad oo!
guy2:Mad oo!
Mad oo
An exclamation made when someone says something too unbelievable or exciting
Some random chick: My boyfriend promised to get me the new iPhone 11
Some random chick's friend: Mad oo
Some random chick's friend: Mad oo