Someone who is asked to attend an event at the last minute, replacing an original participant that dropped out at the last minute.
Me: Cheryl, would you like to go to the opera tonight? Debbie couldn't make it.
Cheryl: Oh, so I'm your pinch hitter? Sure, I'll go.
by ChuckChaser69 May 18, 2008
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When your dominate masturbating hand is out of commission for some reason, you utilize your opposite hand to take care of business.
Fuck, how am I suppose to jack off with this cast on my hand. Guess ill have to bring in my pinch hitter.
by double AyeD July 28, 2010
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A pinch hitter is someone who hits people while they're pinching one off.
Pete was quietly pinching a loaf when a wiffle bat came over the divider and hit him in the back of the head.

It was Ignacio the infamous pinch hitter, whose maniacal laughter echoed around the washroom as he ran away.
by scodder May 23, 2010
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1: <baseball> one that pinch-hits
2: <relationship> a penetration device (usually vibrates) used by the male on the female when Viagra just can't quite get the job done.
"Their only chance of hitting a homerun is to bring in their pinch-hitter."

"His only chance of hitting a homerun is to bring in his pinch-hitter."
by Kyle January 16, 2004
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When a guy/girl cannot fuck the person s/he REALLY wants to fuck that night, they call in a pinch hitter.
"Bob was my pinch hitter last night because Adam wasn't answering his phone"
by Miss_lawn April 19, 2009
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Someone you have sex on the same night as had failed plans to have with another person.
Man, I was pissed when Tina said she couldn't go out tonight. Luckily I was able to talk Mary into being a Pinch Hitter.
by Bayushi_Koso September 10, 2011
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Brian: Hey, Bill.. Pass the pinch hitter
Bill: Suck dick and die, Brian
by Mrdumbbum October 30, 2014
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