Presterday Share definition Flag The day before yesterday (pre-yesterday).Prounounced "press"+"tur"+"day". I went to the movies presterday.What did we eat presterday?I was busy presterday. Presterday by Swag-Lord January 31, 2019 0 0 Get merch Get the Presterday mug. Buy Now — $32.95 See more merch