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What does RP stand for?

RP stands for Relief Pitcher (baseball)

This definition appears very frequently and is found in the following Acronym Finder categories:

  • Slang/chat, popular culture

See other definitions of RP

Other Resources:
We have 105 other meanings of RP in our Acronym Attic

Samples in periodicals archive:

SUSPENDED: John Reeker, Atlanta Braves relief pitcher, until May 1 for making racist and homophobic comments in an interview with Sports Illustrated.
Each potential relief pitcher should be told how he might be used on that day so that he can mentally and physically prepare for it.