bilf Share definition Flag "baby I'd like to f*ck" as said by Stewie on family guy....it's only cool for him to say it...if you say it then you're just a pedo Stewie: Oooh ooh bilf! She's a total bilf! bilf by squishy-tishy January 17, 2011 0 0 Get merch Get the bilf mug. Buy Now — $32.95 See more merch