beet red Share definition Flag A moment when one's face turns red due to an uncomfortable, embarassing, or awkward situation. This guy turned beet red at Walmart the other day. He tripped over his own shoelace and fell to the ground. Shortly after, his face resemble the color of lava. beet red by xDLafx December 2, 2009 0 0 Get merch Get the beet red mug. Buy Now — $32.95 See more merch