Coach Steve Share definition Flag Coach Steve - Noun - Character From The TV show Big Mouth. His Peen Sneezes sometimes and he mad sex with a lady. Dude Coach Steve Just Did Push-ups on Jays Mom. Coach Steve by xXFro_YoXx December 21, 2018 0 0 Get merch Get the Coach Steve mug. Buy Now — $32.95 See more merch