PFO definitions

pfo

please fuck off
Found on http://www.noslang.com/dictionary/p/

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PFO

Short for `please fuck off`
Found on http://www.ruf.rice.edu/~kemmer/Words04/usage/slang_internet.html

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PFO

Patent foramen ovale
Found on http://www.translationdirectory.com/glossaries/glossary124.htm

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