gubbertush
/ˈɡʊbərˌtʊʃ/ or /ˈɡʌrbərˌtʊʃ/Definitions
1. noun
A colloquial term referring to a person who frequently uses obscure or pretentious vocabulary in an attempt to appear intelligent.
“The professor was accused of being a gubbertush by his colleagues due to his use of overly complex language in lectures.”