- List of baseball jargon (J)
jack
:A home run or to hit a home run. "Hitting a jack" or "Jacking one out of here."
jake
:Half-hearted or lazy effort by a player, i.e. "He jaked that play."
jam
:*To pitch far enough inside that the batter is unable to extend while swinging. "The pitcher jammed the batter". The batter was "handcuffed" or "shackled" by the pitch.:*When runners are in scoring position with less than two outs and good hitters coming up. "The pitcher is in a jam.":*"Bases are jammed" means "bases are full." There are runners on 1st, 2nd, and 3rd bases. Sometimes referred to as a "jam sandwich."
jelly legs
:When a batter is fooled by a pitch (normally an off-speed or curve ball heading at an unusual angle) and departs from a good batting stance. “His (Barry Zito) curve ball...it jelly-legs you.” - Phillies First Baseman Jim Thome, [ [http://www.baseball-almanac.com/quotes/barry_zito_quotes.shtml Barry Zito Quotes ] ]
jerk
:To hit the ball hard, typically used to refer to pulling the ball over the fence for a home run. "Lee jerked one of his patented doubles into the left-field corner against Minnesota lefty
Johan Santana ." [ [http://chicagosports.chicagotribune.com/sports/baseball/whitesox/cs-050712allstargamer,1,3445034.story American beauty - ChicagoSports.com ] ]Judy
:A Punch and Judy hitter who hits with little power.
jump on the ball
:A fielder is said to get a "good jump on the ball" when he anticipates or reacts quickly to a batted ball and is thereby able to make a good play by fielding or catching it. [See Allan R. Andrews, "A Good Jump on the Ball: Algorithm in the Outfield," [http://www.toad.net/~andrews/jump.html The American Reporter (8 October 1998)] .] Also see crack of the bat.
juiced
:*"Bases juiced" means
bases loaded .:*A player who is said to be juiced is thought to be takingperformance enhancing drugs . "It is now assumed, of course, that Bonds may well have been juiced on steroids at the time; the previous year he had set the all-time single-season record of 73 home runs, and his musculature was almost freakishly swollen." [Eugene Robinson, "Fans on the Juice," [http://www.washingtonpost.com/wp-dyn/content/article/2007/12/17/AR2007121701597.htmlWashington Post , December 18, 2007] .] :*A baseball that is said to be juiced is doctored or manufactured in some way that makes it travel farther when a batter hits it. "Spectacular increases in home runs have often raised the question: Has the ball been juiced up to travel farther, in order to increase the number of home runs?" [ [http://www.townhall.com/columnists/ThomasSowell/2001/12/30/was_the_ball_juiced Thomas Sowell :: Townhall.com :: Was the ball juiced? ] ]Junior Circuit
:The
American League , so-called because it is the younger of the two major leagues.junk
:*breaking balls and knuckleballs, pitches that are difficult to hit due to movement rather than velocity. The term is also used to describe a "junk pitcher" or a junkball pitcher. "I couldn't believe he threw me a fastball because he had me down 1-2," Thames said. "He's usually a junk pitcher and he tried to sneak a fastball past me, and he left it up." [ [http://sports.espn.go.com/mlb/recap?gameId=270706106. ESPN - MLB Baseball Teams, Scores, Stats, News, Standings, Rumors - Major League Baseball ] ] See also:
Eephus pitch junkball pitcher
:A pitcher who throws predominantly junk, usually due to a weak (or slow) fastball. A junkballer or a junk artist: "Like all junk artists, Trujillo will have to prove himself at the higher levels before getting a shot at a major league job." [John Sickels [http://www.mastersball.com/sickels/services.htm "Baseball Newsletter" (June 15, 2001)] .] See also:
Eephus pitch References
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