SistaCuz Share definition Flag A SistaCuz is a female cousin that you feel is more like a sister. "Debbie, you are my SistaCuz, I absolutely love you!""Happy Birthday My Little SistaCuz!" SistaCuz by Belle / Mish Mosh November 14, 2011 0 0 Get merch Get the SistaCuz mug. Buy Now — $32.95 See more merch
