not worth a cress
drossy
goodless
shand
not worth a curse
not worth salt
good-for-nothing
valueless
good for nothing
not worth a dime
jabberwocky
wutless
inutilitarian
no good
shitey
frustraneous
not worth a plug nickel
nutil
crapalicious
ineffectual
scabbed
garbageness
rubbishy
laoya
as much use as a chocolate teapot
shit
misbegotten
drecky
confineless
trumpery
shitstained
floccinaucinihilipilificatious
dreckish
not worth a whistle
impertinent
nonbondable
mouldy
upter
shitty-ass
Mother Hubbard
toshy
unworth
losel
waste
two-bit
manky
useful as a chocolate teapot
fruitless