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When you feel compelled to do something but are anchored in place by the fact you are taking a dump or cleaning your rectum.
Bob: "Are you going to run up here and get your dog off my front porch?"
Me: "I would but I just cast off my shit anchor."
Bob: "Well hell, I understand, see you in about 3 hours."
by membersmarktp1 September 12, 2014
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