Filling a southern girl's mouth with Kool aid, making her get on her knees with her mouth open while you dip your balls in it.
My balls were super hot last night so my girl let me give them a Mississippi birdbath.
by C-Lo Diggity February 13, 2008
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The act of which some with diarrhea poo's in their partners mouth and dip your balls in it.
I just filthy mississippi Birdbath this bitch she's just a nasty dirty girl. she ate my shit.
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