Top Definition
A fake friend.

One who pretends to be your "bro" but really does not care.
I thought Bob was cool but he turned out to be a total Placebro.
by AMJacker January 27, 2010
1 more definition
A white guy that tries to act like like he is black by wearing the baggy clothes and speking ebonics.
Rodney is a placebro. He's having a racial identity crisis.
by Jimmy The Schwantz November 14, 2008

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