Yankee announcer Micheal Kay is not alone in mangling baseball lexicon. Many modern media people get these terms wrong. But I hear Kay do it most often, including yesterday when an infielder let a routine grounder skip off his glove and Kay immediately exclaimed that the fielder booted it.
Bean: a term referring to the head, especially concerning common sense. As a verb: being hit in the head.
Boot: obviously, something worn on the foot. Verb: to boot a ground ball means to kick it with a foot.
In Micheal Kay Land, despite his being a graduate of Fordham University in the Bronx, these two simple terms have come to mean:
bean: hit by pitch on any part of the body;
boot: any infield error on a ground ball.
Maybe this confusion is what leads Kay to describe a batter being smashed with a fastball travelling in excess of 90 miles per hour as being plunked, which hardly connotes the potential damage.