A swear... an exclamation. something you say when frustrated and no other swear really does it.
Looking through the sales rack, you can't find anything that is your size...muttering things under your breath, like 'frk...frkin fracking ficckidy...grr...' you finally just exclaim "oh judy!". Sometimes just "JUDY!".
Usually it's just 'oh JUDY!'
Can replace thigns like: dammnit, fuck, crap, etc.