a period of intensive action
I need to have a blitz on my unpaid bills
an intensive aerial bombardment
(the Blitz) the bombardment of British cities by the German air force in 1940 and 1941
= blitzkrieg
an intensive attack on or campaign against somebody or something
a blitz against the unions
in American football, a concerted charge on the quarterback of the opposing team
[abbr of German Blitzkrieg: see blitzkrieg]