pantywaist
Concise Oxford English Dictionary © 2008 Oxford University Press:
pantywaist/ˈpantɪwɛɪst/
▶noun N. Amer. informal a feeble or effeminate person.
– origin 1930s: extended use of the literal sense ‘child's garment consisting of panties attached to a bodice’.
'pantywaist' also found in these Oxford entries:

