To be bisexual. You're sexually attracted to both males and females. You don't care which gender they are, because love is love after all.

Same as 'batting for both teams'
Person A: I play for the guys, what about you?
Person B: I am playing for both sides
by DELLGIRL July 5, 2014
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Having anal sex along with regular f*cking, similar to DP
"Jim, I hate playing on both sides, it really hurts."
by Gimothy January 15, 2018
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