A<unk>  is a tiny, torn piece of skin, more specifically eponychium or paronychium, next to a fingernail or toenail.<unk> s are typically caused by having dry skin, or by trauma to the fingers, such as paper cuts or nail biting.
Hangnail
Stretcher bearer
Hangover
Beauty Mark
Quackery
Biovail
Jungle Rot
Lint 