wimp


wimp
/wimp/, Informal.
n.
1. a weak, ineffectual, timid person.
v.
2. wimp out,
a. to be or act like a wimp.
b. to show timidity or cowardice; chicken out.
[1915-20, Amer.; orig. uncert.; cf. WHIMPER]

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Universalium. 2010.