DuckCorp Dico

Found one definition

1.                 From WordNet (r) 3.0 (2006):
                   
   
   
                   
                     
   flagging
       adj 1: weak from exhaustion [syn: drooping, flagging]
       n 1: flagstones collectively; "there was a pile of flagging
            waiting to be laid in place"
       2: a walk of flagstones; "the flagging in the garden was quite
          imaginative"