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n. Vocabulary people use to try to put on an image or sound smart. For example, people referring to Nitrous Oxide as 'NOS', which is just flat out wrong.

Can also refer to words which sound like they have meaning, but don't.
Kevin, enough will your bullshit fauxcabulary. I know you know nothing about topic of discussion.
by TorrentFox December 21, 2006
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Pretending to have a large vocabulary
Using an obscure portmanteau like "portmanteauspicious" to describe a situation whereby an opportunity to express unnecessarily large complex words is presented.
"He was using big words like she had a big vocabulary, but all he really had was a fauxcabulary"
by seannorling August 31, 2015
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