nervous Nellie
noun
or
nervous Nelly
/-ˈnɛli/
or
Nervous Nellie
or
Nervous Nelly
plural
nervous Nellies
or
nervous Nelly
/-ˈnɛli/
or
Nervous Nellie
or
Nervous Nelly
plural
nervous Nellies
Britannica Dictionary definition of NERVOUS NELLIE
[count]
US, informal
:
a very fearful or nervous person