The phrase "mean as nails" is an idiomatic expression used to describe someone who is particularly harsh, unkind, or aggressive. It conveys a sense of toughness and lack of compassion, suggesting that the person is blunt or unforgiving in their demeanor. The imagery of nails, which are hard and unyielding, reinforces the idea of a stern or cruel attitude.
It can mean that he tore his nails loose from the skin of his fingers, or it can mean he was holding onto something and tore his nails loose from his grip.
By system, you mean category.. I'm not sure if you mean finger nails or like tool nails, so I'll give you both. Finger nails: Body parts Tool nails: Hardware
Nails are made of iron. If you are as tough as iron then you are really tough.
it means she cares about the cleanliness of her nails, and she cares how she looks.
acrylic nails are like fake nails, (you would probably know,) but, you can have any sized nails.
They like you
It means that someone has been sloppy about disposing of their rusty nails.
If you are angry enough to bite nails, you could either be biting your own fingernails or biting iron nails -- either way, you are gnashing your teeth in anger.
This is a simile comparing someone or something to nails. Nails are hard and tough, so this person or thing is being declared to be very hard and tough.
it means when you bite your nails
Think you mean 'Pinhead' from the movie Hellraiser.
that you have a cut there or your sensitive to it