"Riddle Me This!" Jun 16, 2017 3:47:03 GMT Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by Salzmank on Jun 16, 2017 3:47:03 GMT Could it mean "average"?In mathematics, four of those dots mean to take the arithmetical mean. For example:3 :: 11 = 7Edit: A greater discussion about "double colons."