shampoo loop
the occurrence of multiple shampooings or washing body parts during a shower because you get distracted and forget what you've already cleaned.
Writer: I had a great idea for a book this morning in the shower, but it led to a three round shampoo loop.
Friend: I hate that!
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Wife: You used all the hot water!
Husband: Sorry, I got stuck in a shampoo loop.
Friend: I hate that!
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Wife: You used all the hot water!
Husband: Sorry, I got stuck in a shampoo loop.