What is Relief Pitcher?
1.
(n) A vibrator or other sex toy a woman may resort to if her partner (the "starter") can't finish the job.
She was so frustrated -- she had her relief pitcher go for 18 innings.
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2.
For males engaging in a sexual act with a woman: An alternate source of stimulation used when the currently enacted source of stimulation becomes tiresome to the male giver. The act of switching from
"dude i was bangin' my girl so hard but i got fuckin' tired so i brought out that relief pitcher son."
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