f. in your face slang (orig. U.S.), (a) as int. phr., an exclamation of scorn or derision; (b) as adj. phr. (freq. hyphenated) bold or aggressive; blatant, provocative, brash.
1976 C. ROSEN Mile Above Rim xv. 159 ‘Stuffed!’ shouted the taller boy. ‘Doobie got himself stuffed!.. In yo' face, Doobie!’ 1977 Washington Post 25 Feb. (Nexis) D1 Pipkin was the epitome of the ‘hot dog’, interested only in a personal, in-your-face confrontation with the defender of the moment. 1979 Verbatim Summer 6/2 The expression ‘Face!’ Apparently, it is an abbreviation of ‘In your face, Ace!’ 1990 MIZELL & BROWN Faces (song) in L. A. Stanley Rap: the Lyrics (1992) 268 In your face all the time All in your face when I'm kickin' my rhyme. 1990 Chicago Sun-Times 30 Nov. I. 90/1 Ismail is unusual in that he's not you prototypical chest-out, in-your-face, strut-your-stuff star. 1992 N.Y. Times 6 June 23/1 The voters are saying, ‘In your face, Bush!’ They are saying, ‘In your face, Clinton!’ That's because the voters are stressed out. 1993 Face Sept. 109/1 Testosterone-fuelled in your face and on your case macho is not his bag.