good for nothing
good-for-nothing
jabberwocky
as much use as a chocolate fireguard
not worth a whistle
ineffectual
garbageness
inutilitarian
no good
not worth a cress
drossy
inutility
not worth salt
not worth a curse
nutil
frustraneous
shand
goodless
wutless
valueless
impertinent
for the birds
inane
unavailing
drecky
unuseful
losel
fruitless
bastardly
worthlessly
useless as tits on a boar hog
laoya
floccinaucinihilipilificatious
crapalicious
not worth a plug nickel
uselessly
waste
blivit
pile of poo
dust
rubbishy
not worth a dime
no-good
toshy
nalayak
pants
punk
pointlessly
scabbed
idle