Wiktionary
alt. (context informal English) A person whose personality and usual behavior are characterized by worry, insecurity, and timidity. n. (context informal English) A person whose personality and usual behavior are characterized by worry, insecurity, and timidity.
n. (alternative spelling of nervous Nellie English)
Usage examples of "nervous nellie".
Behind him, Brandon Camberbridge had been roving restlessly around the cottage, fussy and picky, not only a nellie but a nervous nellie, his reflection flickering across the glass in front of Wylie like the ghost of Franklin Pangborn, but now he came forward to present his fretful profile to Wylie as he also looked out at the lake.
Ironic that the one to call him back would be the nervous Nellie type.
Gay just proved that she was not being a Nervous Nellie when she asked me to break our usual trip to THQ into three jumps.
His backseater always had been a nervous Nellie on cat shots, even on routine flights.
I'm probably being a nervous nellie because you're so valuable to me.
The last thing I need is a nervous Nellie on the set the day the roof falls in.