verb

• (transitive) To unwind or untwist (something).
  "Can you help me uncoil this rope?"
• (intransitive) To unwind or untwist oneself.
  "The snake uncoiled and prepared to strike."
• (slang, derogatory, somewhat euphemistic, transitive, rare) To defecate.
  "Indians defecate everywhere. They defecate, mostly, beside the railway tracks. But they also defecate on the beaches; they defecate on the hills; they defecate on the river banks; they defecate on the streets; they never look for cover ... the one thing we can and must learn from the West is the science of municipal sanitation.' They do uncoil anywhere and everywhere. It is a great mingling of cow, dog, goat and human feces. sh!t dust is in the air."