*We know Jay-Z has made sizable investments in clubs, hotels, and organized sports, etc. Well, apparently he doesn’t have a problem with small investments, either.

In fact, you could say he’s putting his money where his mouth is … in the chicken wang bidness.

Seriously, we’ve learned via TMZ that the hustler — along with his mother Gloria (below left) and sister Andrea — secretly invested in a buffalo wing outlet in Brooklyn called Buffalo Boss.

By the way, Jay’s first cousin, Jamar White (below right) is one of the owners.

Buffalo Boss is already making a positive impact in the community — recently rewarding outstanding students at a local middle school with FREE FOOD!