NUB

What is NUB?

NUB meaning in Military or Military Slang terminology / glossary / dictionary is:
(U.S.) (Submarine Service) Abbreviation for ‘Non-Useful body’ or ‘Non-Useful bitch’–a new enlisted crewmember who has not yet completed the qualification process to earn their vaunted Submariner’s Warfare Badge, otherwise known as their ‘Dolphins’. New definition for term “New Underway Buddy” was coined to allow its continued use despite new stricter hazing rules.

 

reference: Glossary of military slang