Someone who is vain and has no depth - all of his actions and his way of life are full of nothing. This is a term used by those of the "Detroit Yeshiva" who are the elite of the Chabad Lubavitch Hasidic Jewish Sect

The alternate dimension you enter when you stand up too fast.

1.empty
2.hollow
3.as in 4 dimensional(bigger on the inside than on the outside)

The Void is the type of feeling one gets after finishing a really good video game/book/tv show/movie. The piece of media was so good, it leaves a void in you, leaving you wondering if anything else will ever fill the void.

an empty nothingness prone to collapse

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When someone disregards what you have said