female version of bromate describing an intimate relationship between two girls, who are not related by blood. they are known for whining excessively. any divisions between sisterhood and sisterchicks.
after hours of discussion the two bitchsis' came quickly to the agreement that micheal was an asshole

"yo BFF"
"yo bitchsis!"
by bitchsis4life May 17, 2010
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A play on words of the “itsy bitsy spidernursery rhyme.
/The shitsy bitchsy spider climbed up the water spout/
/She should have fucking known that the water would come out/
/Down came the rain and the dumbass got all wet/
/‘Cause the shitsy bitchsy spider is a fucking idiot/
by J\ July 10, 2023
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