OFN is a acronym meaning Oil For Nils, a name use'd by the western styled PMC(private military company)which WAS based out of sweden whom made their money from Oil(protecting pumps and stealing), warcrimes, raiding and the sabotage of enemy oil pump and factorys. they are still in action but in small sizes or rebranded sub-branches of the company. most of the members affiliated with OFN got away scott free but are looked down appon by society
Josh: Eric, wasn't your dad a former OFN merc? Eric: *sigh* yeah why? Josh: did he commit warcrimes? Eric: ofcourse he did silly.
by the F.D.A September 8, 2023
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Abbreviation of the saying “oi fuckhead no” meaning think before you speak.
Prior to shooting my mouth off without thought, I should think OFN.

OR
In order to stop myself from saying something I’ll regret, I should think OFN.
by Justthisforabit August 22, 2020
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