wart

noun

1. A type of deformed growth occurring on the skin caused by the human papillomavirus (HPV).

   “A wart has appeared on my toe.”

2. Any similar growth occurring in plants or animals, such as the parotoid glands in the back of toads.
3. (figuratively, informal)Anything unsightly or undesirable; a blemish.

   “Things that look too good to be true usually are, and every company has some warts that need to be taken into account.”

4. (derogatory, slang)Any of the prefixes used in Hungarian notation.

   “Hungarian warts suck big time! If you need them, your functions are too big and your class interface is much too fat.”

   “Far easier to not use warts in the first place. Even if a wart is present, you still have to verify the variable's declaration anyway, if you're a diligent maintenance programmer.”