Possible Clues:

• And the rest: Abbr
• 'Yada, yada, yada' letters
• 'You get my point here'
• List-curtailing letters
• 'Blah, blah, blah ...': Abbr
• Latin abbr.
• Series finale?: Abbr.
• 'And so forth'
• "I could go on" abbr
• Space saving abbr