Two people who, by some divine intervention, always feel the need to pee at the exact same time.
Person #1: Ugh, I had too much beer, I'll be back.
Person #2: Where are you going? I'm gonna go pee.
Person #1: OMG I need to pee too!
Person #2: You're my Pee Buddy!
by betterthanseanatbeerpong March 12, 2013
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The assigned friend who helps you in the bathroom when you are too drunk to do your business by yourself.
Amy: Who will be my pee buddy tonight?
by twizzet February 5, 2010
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Mostly used in the military for personal going to urinate but can not do so without another person to cover his 6.
PVT Joe:Drill Sergeant can I go to the latrine?

DS: Do you have a pee buddy?

PVT Joe: Umm, Umm, Umm

DS: (shouts out loudly) WHO WANT"S TO BE PVT JOE'S PEE BUDDY
by Fran-k-bron a.K.a PaKo February 6, 2009
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