Every year, my hunters leave the farm after butchering their deer and somehow neglect to thoroughly clean my tools they used. Trusty tomahawks & saws, mostly. The fat/gore is admittedly hard to get off and leaves a coating that is nasty. This year, I tried a different approach beyond "Dawn" - toothpaste, stiff brushes, hot water, and elbow grease. Not exactly rocketry, but "nasty is nasty" & I hate nasty. Used the same for knives - those tiny crevices especially. For some reason, our normal dish soap won't cut deer tallow.
When you're done, replace your wife's toothbrush in the bathroom. Paste, also.
When you're done, replace your wife's toothbrush in the bathroom. Paste, also.