What is LOM?

LOM meaning in Military or Military Slang terminology / glossary / dictionary is:
(U.S. Army) Lack of motivation – A type of letter or memorandum signed by U.S. Army Ranger School students who drop out of the course by their own choice and not for medical reasons or performance. Signing a LOM is reputed to prevent voluntary drops from re-enrolling in the course and to cause long-term military career difficulties.


reference: Glossary of military slang