Oba yo
A Mennonite phrase that means 'I am 100% sure about this' and it’s used when you’re super happy about something, like when your dog poops on the neighbor’s lawn and you’re proud of it.
'Oba yo!' he said when I told him I got an A.
'Oba yo!' she said when I told her I beat her at chess.
'Oba yo!' he said when I told him I ate the whole cake.