Nickel

[Sarah]

A 5-year prison sentence.

[Julene]

A silvery-white metal, the chemical element of atomic number 28.

[Jessica]

1. [Five cents] in United States [currency]
2. Five dollars worth of drugs, usually marijuana.
3. (Slang) Five [hundred] dollars.
4. (Slang) Five years (in prison, in the army, etc.)

[Luis Fok]

A woman of low standing in terms of physical attractiveness.
They are often the fodder for young intoxicated men also of marginal physical attractiveness, men of a high level of physical attractiveness who have either entered a state of desperation or incapacitation, or fallen [wingmen].
Much like operations in mathematics, the classification of a nickel is also bound by the laws that govern their existence; this law is know as [Ethans] law, discovered by a strip club owner by the same name. Ethans law states that a nickel must possess at least two of the following characteristics: a large waist, oblong/distorted face, facial hair, double chin of the arm, or [pepperoni nipples].
Although the term nickel is not the surname of this wily beast, it does provide the most [succinct] definition.

[Sommer]

a chemical element that is a silver-white metal:

[Raeanne Dimick]

Nickel...

A term used by suburban white boys who profoundly say and [preach] how non racist they are..But still try to be PC correct ghetto...

Nickel in its [PG rated] format replaces the term/word.. [Nig]**r..

[Monty]

A girl who rates a 5-6 on a [1-10 scale].
An [average looking] person. May have one feature that repulses or one finds [unnatractive].
Someone you wouldnt be completely repulsed with but you wouldnt brag about banging them. You may even try to keep it a secret.