Polecat is also
cowboy slang for a
skunk. Proper usage is along these lines:
"That dad-blasted polecat done up and sprayed all mah ten gallon hats. If'n that ain't the rootin tootinest stank ah ever did lay mah nose on, I'll be a three-legged horny toad. Yee-haw!"
This is how cowboys actually talk at all times.