[1] : WordNet (r) 2.0

chuck up the sponge
     v : give up in the face of defeat of lacking hope; admit defeat;
         "in the second round, the challenger gave up" syn: drop
         out, give up, fall by the wayside, drop by the
         wayside, throw in, throw in the towel, quit ant:
          enter
see also:
drop out give up fall by the wayside drop by the wayside throw in throw in the towel 
quit enter 

Ball Up >> B Words
Ball Up, definition of term: Ball Up
ball+up_pag1.html

Bang Up >> B Words
Bang Up, definition of term: Bang Up
bang+up_pag1.html

Backed Up >> B Words
Backed Up, definition of term: Backed Up
backed+up_pag1.html

Back Up >> B Words
Back Up, definition of term: Back Up
back+up_pag1.html

Ante Up >> A Words
Ante Up, definition of term: Ante Up
ante+up_pag1.html

Act Up >> A Words
Act Up, definition of term: Act Up
act+up_pag1.html