Baesauce Share definition Flag A nickname given to friends as a form of sexual harassment or as plain old teasing juice. C'mon, baesauce! You know you like xxxxx- hell, whenever you see him/her your face is a ripe tomato! Baesauce by Mars'seile April 3, 2016 0 0 Get merch Get the Baesauce mug. Buy Now — $32.95 See more merch