Mehndays Share definition Flag An overwhelming feeling of indifference that only occurs on Mondays. Gregory: How’s your day going? Alyssa: Meh. Gregory: Yep, you got a classic case of the Mehndays. Mehndays by Geoffrable March 6, 2023 0 0 Get merch Get the Mehndays mug. Buy Now — $32.95 See more merch