What is Bum Monster?
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When a girl wears really tight trousers or jogging bottoms that ride up the crack of their ass. Women of a larger frame are more likely to be visited by the Bum Monster. In extreme cases the whole of the garment can be sucked up into the body.
My god check out that fat birds ass
Yeah she's been visited by the Bum Monster
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Random Words:
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1. An unspoken language only the men can speak, takes years too learn, im lucky to have to learned it, and i sir, am the only one and a ..