Here's from a previous thread on SDN titled A.C.R.O.N.Y.M.S.
Adding IMHO, BUMP, LOL, PM, ROTF, LMAO
AAMC - Association of American Medical Colleges
AMA - American Medical Association
AMC - Albany Medical College
AMCAS - American Medical College Application Service
AOA - American Osteopathic Association (One must attend an AOA-accredited school in order to attend a DO residency program in the United States.)
BUMP - Bump Up My Post
(C)CME - (Council on) Continuing Medical Education
CDC - Centers for Disease Control and Prevention
CMS/FUHS - Chicago Medical School/Finch University of the Health Sciences
CWRU - Case Western Reserve University
DO - Doctor of Osteopathic Medicine
ERAS - Electronic Residency Application Service
EVMS - Eastern Virginia Medical School
GW - George Washington University
IMHO - In My Honest Opinion
JHU - Johns Hopkins University
LMAO - Laughing My A$$ Off
LOI - Letter of Intent
LOL - Laugh Out Loud
LOR - Letter of Recommendation
MCG - Medical College of Georgia
MCO - Medical College of Ohio/Toledo
MCAT - Medical College Admissions Test
MCP(HU) - Medical College of Pennsylvania (Hahneman University)
MCV - Medical College of Virginia/Virginia Commonwealth University
MCW - Medical College of Wisconsin
MD - Doctor of Allopathic Medicine
MJ - Michael Jordan
MPH - Masters of Public Health
MSTP - Medical Scientist Training (MD/PhD) Program
MSUCOHM - Michigan State University College of Human Medicine
NRMP - National Resident Matching Program
NSUCOM - Nova Southeastern Univ. College of Osteopathic Medicine
NYMC - New York Medical College
OCD - Obsessive-Compulsive Disorder
OHSU - Oregon Health Sciences University
OSU - Ohio State University
PM - Private Message
PSU - Pennsylvania State University
ROTF - Rolling On The Floor
SLU - Saint Louis University
SUNY - State University of New York
UMDNJ-NJMS - University of Medicine and Denistry of New Jersey, New Jersey Medical School
UMDNJ-RWJMS - University of Medicine and Dentistry of New Jersey, Robert Wood Johnson Medical School
USMLE - United States Medical Licensing Examination
COMPLEX -
UAB - University of Alabama-Birmingham
UAMS - University of Arkansas Medical School
UC - University of Cincinnati
USC - University of Southern California (Keck SOM)
UCD - University of California, Davis
UCI - University of California, Irvine
UCLA - University of California, Los Angeles
UCSD - University of California, San Diego
UCSF - University of California, San Francisco
UF - University of Florida
USA - University of South Alabama
USF - University of South Florida
USUHS - Uniformed Services University of the Health Sciences
UTHSCSA - University of Texas Health Science Center at San Antonio
UTMB - University of Texas Medical Branch
UVA - University of Virginia
UVM - University of Vermont
UW (Pronounced U-Dub) aka UWSOM - University of Washington
WSU - Wright State University OR Washington State University