galavanting
A person who thinks they're a big shot even though they barely passed third grade.
The CEO was galavanting around like he was the king of the universe and everyone else was just there to suffer.
The mayor was galavanting around like he had just won the lottery and everyone else was just there to be annoyed.
The pastor was galavanting around like he had just been told he was going to heaven and everyone else was just there to watch.