She really did represent the point of the spear, indeed often the whole spear itself, yet never boasted so brassily about it.
"impudent," 1570s, from brass + -y (2). Cf. brazen. Sense of "debased and pretentious" is from 1580s, from brass as contrasted with gold; sense of "strident and artificial" is from 1865. Related: Brassily; brassiness.