bobble (
http://definr.com/bobble)
v : make a mess of, destroy or ruin [syn:
botch,
bumble,
fumble,
botch up,
muff,
blow,
flub,
screw up,
ball up,
spoil,
muck up,
bungle,
fluff,
bollix, {bollix
up},
bollocks,
bollocks up,
mishandle,
louse up,
foul up,
mess up,
fuck up]