British slang an insignificant or worthless person
How To Use Quotation MarksQuotation Marks Rules: When it comes to where to place quotation marks, people get confused. Follow these quotation marks rules for punctuation.
Word Origin for no-mark
C20: from 'someone who makes no mark '
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012