Bbnaija s7 phyna freestyled her bum bum for groovy which made him go crazy

I think there may be some misinformation here!

Phyna is a housemate on Big Brother Naija (BBNaija) Season 7, and while she is a talented individual, I'm not aware of any instance where she freestyled her bum bum for Groovy, which is another housemate on the show.

Freestyling is a form of improvisational rap, where an individual creates lyrics on the spot, often in response to a prompt or theme. While Phyna has showcased her dancing skills on the show, I'm not aware of any instance where she freestyled a rap about her bum bum for Groovy or anyone else.

It's possible that you may be thinking of a different moment or interaction between Phyna and Groovy on the show. If you could provide more context or clarify what you're referring to, I'd be happy to try and help you out!