To tip ash on someone or something, either purposely or accidentally.

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Tennagers often say this just before getting high, often with a joint. They make a imaginary shed and step into it and sit down and get high (making sure to close the door behind them). Often these imaginary sheds are made in obvious places e.g oval, park

The slang term for a sexual act where one stimulates the anus with a thumb during copulation. This move is usual performed in a clockwise motion.

to get ashes thrown on you