BillyB123 Share definition Flag A YouTuber that gained popularity by blasting "Bitch Lasagna" in the library to save PewDiePie. BillyB123 is my favorite YouTuber. BillyB123 by LightTheEmber March 18, 2019 0 0 Get merch Get the BillyB123 mug. Buy Now — $32.95 See more merch
