kabooki
A painful sore typically found in the groin during the advanced stages of Bubonic Plague, which will burst from slight pressure to discharge white or yellow pus with an extremely foul odor. Kabookis should only be lanced by medical professionals in special cases, because the vulnerable site will usually fall prey to parasitic infestation.
The MD popped my kabooki with a scalpel and got covered in squishy yellow shit that smelled like bleu cheese.