prig:
(plural: ‘prigs‘; pronunciation: the letter ‘g’ is said with a ‘g’ sound as in “gun”; for the right pronunciation, please click here)

a typical prig
a person who believes himself/herself morally better than others and who shows unnatural obedience to the details of rules correct behaviour, etc., in an irritatingly annoying manner; a pedant;
a person who is considered arrogant, proud and annoying;
(mainly in British usage) a thief or pickpocket,
e.g.
Martha is hated by everyone as a prig!
If they are not careful, most academicians are in danger of becoming prigs, trying to be correct, honest and regular in a manner that annoys others.
