Jenga

 is a tabletop game.

Episodes

 * "The Fuzzy Boots Corollary" (S1E3), Howard, Raj, and Sheldon play Jenga
 * "The Zazzy Substitution" (S4E3), Sheldon reveals that Leonard sucked at losing, referring to the incident during The Great Jenga Tantrum in 2008, although Leonard implied that Sheldon was a bad loser
 * "The Shiny Trinket Maneuver" (S5E12), Howard, Leonard, and Raj play  Jenga
 * "The Egg Salad Equivalency" (S6E12), Sheldon and Leonard play giant Jenga