Bosunitis

A seafarer in the Deck Department of a Ship that either:

1 . Wants the Bosun's job.
2. Undermines and badmouths the Bosun to get the Bosun's job.
3. Always wants the Bosun's job.
4. Always writes 'Bosun' on his coveralls, hard hat and portable radio.
5. Accepts only jobs as Bosun

Bosunitis is common in the Australian Merchant Navy.
3.

He wants to be the Bosun on every ship he joins.. he has a bad case of Bosunitis.