What is 1-2 Check Up?
when you you look at a nigga (or a bitch) and then check them up and down like 1 at tha head 2 at tha feet and back up. This lets that person know either you diggin em or you wanna fight... depends on what your face is lookin like. U got that thizz face on then they know whassup!
That nigga just gave you tha 1-2 check up, you betta go holla if you tryina get on