According to Wikipedia, the reason that a four-strikeout performance by a batter is known as the golden sombrero is because some people thought this feat should be considered "bigger" than a hat trick in hockey (three goals). Five strikeouts in a game is known as "The Olympic Rings" (of which there are five) or "The Platinum Sombrero." And six strikeouts in a game? That's known as "The Horn" (named after Sam Horn who accomplished the feat in 1991) or "The Titanium Sombrero." No batter has ever struck out seven times in an MLB game.
Among currently active MLB players, which batter has the most career games with five strikeouts?