dud

1 dud /ˈdʌd/ noun
plural duds
1 dud
/ˈdʌd/
noun
plural duds
Britannica Dictionary definition of DUD
1 
[count] : something that does not do what it is supposed to do : something that is a complete failure
2 
duds [plural] informal : clothes
2 dud /ˈdʌd/ adjective
2 dud
/ˈdʌd/
adjective
Britannica Dictionary definition of DUD
always used before a noun
— used to describe something that fails completely or does not work properly