Possible Clues:

• Three points in a row
• Failure of Oval tail is shown as a series of dots
• Omission of words from speech
• Omission of parts of words or sentences
• Omission of written material appearing dotty?
• dot dot dot
• Lie slips out in dotty row
• What the punctuation mark '...' is called
• Omission of words (gram.)
• Some drinks I spilled turning round �