the act of staring one down, mainly directly in the eyes. not neccessarily bad or good. usually if you
grill the opposite
sex, it implies an interest in them, and if heterosexuals grill the same
gender, it usually means they dont like them, are testing them, and wouldnt mind smacking the sh-t outa them.
good: "hey
buck, that girl is GRILLIN you
HARDCORE,
go talk to her"
bad: "if that punk dont stop grillin, im'a see if he got a problem"