Describing someone whose identity is beyond fluid.

A form of voyeurism frequently practiced by narcissistic, self-obsessed people with unconsciously low self-esteem while walking around or riding on public transport through a busy city.

It involves making snap judgments about the appearance of members of the same sex, e.g. clothes, hair style, build, accessories etc. The identity shopper then copies the appearance of people they like the look of, and so feel much better about themselves. Until they see someone better looking, then they copy them, and so on.

Over time, this cycle raises the standards of dress for a large part of the population which is why people in cities always look so much hotter.

A 4v1 game where there are 4 survivors and 1 hunter where the hunter is supposed to chase the survivors who are trying to escape but in actuality a lot of the time the survivors are the actual hunters (prospector, forward, enchantress and the other harasser type characters etc).
Also a game where "Thank You" translates to "Fuck You" 90% of the time (it's mostly used sarcastically).

Assumption of name and unique identity by which one creates a impression on the internet.

When a girl is falsely accused of being a skank; a case of mistaken identity

The penis identity is a mathematical equation, or identity: 8=D. The identity is similar to others, such as Euler's identity, in that it uses constants rather than variables. It is occasionally written with multiple "=" for emphasis.

An identity that one chooses that explains who they are sexually attracted to. Examples: Gay, Straight, Asexual, Bisexual, Pansexual, ect...