not worth a curse
not worth salt
shand
goodless
not worth a cress
drossy
good for nothing
good-for-nothing
pile of poo
dust
ineffectual
jabberwocky
inutilitarian
no good
nutil
frustraneous
valueless
wutless
not worth a whistle
not worth a dime
as much use as a chocolate fireguard
punk
as much use as a chocolate teapot
floccinaucinihilipilificatious
losel
not worth a plug nickel
garbageness
drecky
worthlessly
Mother Hubbard
diddly-squat
jack
diddley
plug nickel
diddly
nalayak
doodly-squat
diddlysquat
diddlyshit
diddly-shit
shit
squat
impertinent
chocolate teapot
pants
crapalicious
scum
trash
confineless
fruitless
scabbed
inutility
shitey
unworth
nonbondable
trumpery
upter
cockstain
maggot
waste of skin
ramp
fritlag
garbo
waste of oxygen
slubberdegullion
brass farthing
rubbishy
go for a toss
gratis
complimentary
dreckish
shitstained
free
bauble
costless
gratuitous
mouldy
useful as tits on a bull
useful as a chocolate teapot
uselessly
unavailing
hinderlin
busted flush
meaninglessness
inane
toshy
laoya
draffish
straw
for the birds
waste
not worth a brass farthing
clean
vacuitous
twopenny
nullary sum
fool's gold