Mexican Highway Share definition Flag 1 straight couple + 1 gay friend + 1 unassociated gay man = A Mexican Highway I heard you are hangin' out with your gf this weekend. Can I join y'all for a Mexican Highway? I'm sure I could find a 4th. Mexican Highway by aidgo6 February 11, 2021 0 0 Get merch Get the Mexican Highway mug. Buy Now — $32.95 See more merch