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when you haven't taken a shower in so much of a long time that you have forgotten the last time you took a shower.
Person A: Dude, when was the last time you took a shower? You smell like a fatass with hemorrhoids having diarrhea after eating buffalo wings.

Person B (Stricken by shower amnesia): Ewwww. Well, anyway, i dont exactly recall, maybe Tuesday, or Monday, IDK.
by O.Z. tha O.G. February 04, 2010
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