What do you think De-Ja-Vu is?

Déjà vu (pronounced /ˈdeɪʒɑː ˈvuː/ ( listen); French: [deʒa vy] ( listen), "already seen"; also called paramnesia, from Greek παρα "para," "near" + μνήμη "mnēmē," "memory") or promnesia, is the experience of feeling sure that one has witnessed or experienced a new situation previously (an individual feels as though an event has already happened or has happened in the near past), although the exact circumstances of the previous encounter are uncertain. The term was coined by a French psychic researcher, Émile Boirac (1851–1917) in his book "L'Avenir des sciences psychiques" ("The Future of Psychic Sciences"), which expanded upon an essay he wrote while an undergraduate. The experience of déjà vu is usually accompanied by a compelling sense of familiarity, and also a sense of "eeriness," "strangeness," or "weirdness." The "previous" experience is most frequently attributed to a dream, although in some cases there is a firm sense that the experience "genuinely happened" in the past.

The experience of déjà vu seems to be quite common among adults and children alike. References to the experience of déjà vu are also found in literature of the past,[1] indicating it is not a new phenomenon. It has been extremely difficult to evoke the déjà vu experience in laboratory settings, therefore making it a subject of few empirical studies. Recently, researchers have found ways to recreate this sensation using hypnosis.[2]

There are some professionals that think a deja vu happens because there is a short circuit in your brain and the information processed by your senses doesn't properly enter your memory systems so your brain reprocesses the information making what you've just done feel very familiar. The reprocessing doesn't take long.

Deja Vu is having an argument with your boyfriend and realizing its the exact same argument you had with your ex-boyfriend. And then realizing the guys are kind of the same now that you think about it.

That's definitely deja-vu for me.

Well, I think its just when something similar happens to you more than once, and you simply dont remember the first time it happened. Its entirely possible that people who experience it often could be psychic, if you believe in that sort of thing.

think it is? Deja Vu, (sorry for spelling, I'm not sure how to spell it) is when you think that reliving an exact same moment you've already been in. hope you understand that. lol.

A cat walking past a doorway meowing

Not quite sure, but I am positive it happened last Tuesday, or was I somewhere else? Not quite sure, but I think I've been there before.

A memory of a past life or a memory that was transferred from an ancestor to you

A glitch in the matrix

Mind playing tricks or drinking too much lol