When you have beef with someone on someone else's behalf.
Allison has a proxy beef with Zoey because she went down on her friend Caitlin's boyfriend at Coachella behind a bush.
by CristianoD January 25, 2017
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when u hate someone because your friend hates them
Linda: i hate that bitch sally bc she slept with my ex
Susan: omg in that case, i hate her too and now we have proxy beef
by Coolcat11:11 April 18, 2023
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