Home › Words › R › rollunderrollunderrollunder means A raised target above the pinball table that is activated when the ball rolls underneath it.EtymologyFrom roll + under.nounA raised target above the pinball table that is activated when the ball rolls underneath it.e.g.“Also, I still remember the sound of the bells as I went through the upper left and right rollunders.” — 2003, Jay, “CC Beatniks: Any Fun?”, in rec.games.pinball (Usenet):Definitions & examples from Wiktionary (CC BY-SA 3.0).