Tag our mumu don do

I think I understand what you're saying! "Tag our mumu don do" is a popular Nigerian slang phrase that roughly translates to "our mumu has done it" or "our foolishness has been done". It's often used to express that someone has made a silly or foolish mistake.

So, if you're saying "tag our mumu don do", I'm assuming you're referring to a situation where someone has done something silly or foolish, and you're acknowledging that it's a bit embarrassing or regrettable. Am I right?