means oh fucking k, mostly used when a friend talks about themselves way too fucking much or talks too much about anything really.
just a guy: oh my god guys so today i went to starbucks then treated myself to some din din cause you know i love myself and you know its really important to do that blah blah blah

a girl: ofk geez i get it shut up man.
by idkaguy July 03, 2017
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