Annals of B Pod: Making sense of Pneumonia Acronyms Taming the SRU What You Should Know About E cigarettes and EVALI CASAA Archived Commentary Vaping Terminology Is A Dangerous Muddle Global Action to End Smoking What does VAP mean? Definition of VAP VAP stands for Very Annoying Person. By AcronymsAndSlang.com What is VAP?, Ventilator Associated Pneumonia is a lung infection that develops 48 hours or more after endotracheal intubation. It increases ventilator days, costs, and mortality., The Power of Hospital acquired and ventilator associated pneumonia: Clinical sciences