Acronyms dictionary PMO What does PMO mean? PMO is an internet slang acronym for pisses me off, and its different verb forms. Related words: PMTFO pushes my buttons frosts my ass Examples of PMO My mom be telling everybody our business lmfao omg pmo @anggganggg05, August, 2017 Man omfg nothing in this world pmo more than waitin on somebody. It is ridiculous @maddielawson__, May, 2018 And I need to give up drinking cos I'm over everyone saying to me 'you need to stop'. I geeeeedddd it. Pmo. Lol @slepua_yo, December, 2016 SEE MORE EXAMPLES Just Added bystander effect, CSI effect, Streisand effect, L + ratio, docufiction Note This is not meant to be a formal definition of PMO like most terms we define on Dictionary.com, but is rather an informal word summary that hopefully touches upon the key aspects of the meaning and usage of PMO that will help our users expand their word mastery.