A Kufi (koo fee) is a hat traditionallly worn by muslims, it is made
of a lace like material and sits atop ones
head. To "get on" ones
kufi means to be putting them under pressure, or straining
them in some capacity. To trash
talk someone, or call them out for what
they are doing wrong.
He was out there talking major shit
to that nigga, your boy was getting on a niggas kufi.