Noun: The act of cleansing the anal cavity three times to ensure maximum cleaning. Step one: Insert soapy finger into anus to remove gunk, then rinse. Step two: Insert soapy finger into anus to remove leftover gunk, then rinse. Step three: Insert soapy finger into anus, observe to make sure finger is clean, then rinse. Please note that if the finger is not clean after performing step three, it may be necessary to continue repeating step three until finger shows no traces of brown.
"I don't feel fresh and completely sanitized until I've done my daily triple anal cleanse."
"There's no way my dick is going into your skanky ass until you've a done a triple anal cleanse!"