Waifu blast Share definition Flag When a weeb makes a hole on whis waifu body pillow and puts his penis inside of the whole until he cums inside her and sleeps cuddled to it. Why does he have that body pillow? So he can waifu blast it like the lame virgin he is. Waifu blast by TomatoCore305 March 3, 2020 Get the Waifu blast mug.