What a milksoppy, pantywaist, jellyfish, weasel-out wuss he turned out to be.
From the washingtonpost.com
The LAPD couldn't get the job done if it was a pantywaist police department.
From the sacbee.com
Some very good reporters boasted that they never went to college, let alone pantywaist journalism school.
From the jsonline.com
What a load from the pantywaist school people.
From the orlandosentinel.com
Tennis too often is dismissed as pantywaist stuff.
From the signonsandiego.com
Not bad, but they left out stentorian screwball, maniacal motormouth, whacked-out windbag, bombastic birdbrain and pretentious pantywaist.
From the online.wsj.com
More examples
Sissy: a timid man or boy considered childish or unassertive
A children's undergarment composed, in part, of panties attached to a waistband; An ineffectual, weak, or timid person, especially a boy or young man; a sissy; Weak, timid, effeminate, ineffectual
N: A boy or man who is considered weak or effeminate.