What does PFO stand for?

Please Frig Off (polite form, as in a PFO letter for a refused resume)

This definition appears very rarely and is found in the following Acronym Finder categories:

Other Resources:

<< Previous	Abbreviation Database Surfer		Next >>
Paphos, Cyprus - International (Airport Code) Patent Foramen Ovale (defect of the heart) Perron-Frobenius Operator Persistent Felony Offender (various states) Persistent Foramen Ovale (cardiology) Pinedale Field Office (US DOI) Pink Floyd Online (fan site) Pinyon Flat Observatory (earthquake reporting station) Pissed Fell Over (UK medical slang for drunk patient) Pittsburgh Field Office (Pennsylvania)		Plutonium Finishing Operation Power Fail Output Principal Federal Official (US Departement of Homeland Security) Profit From Operations Project Formulation Office (NASA) Property and Fiscal Office Pyruvate:Ferredoxin Oxidoreductase Peninsula Friends of Animals (Sequim, WA) Perfluorooctanoic Acid (suspected carcinogen used in making Teflon) Pharmacy Franchise Owners Association