ekin

An ekin is someone that knows a topic backwards and forwards, inside and out. The name originates from Nike the sneaker company. Phil Knight - Nike's co-founder and chairman - was actually the first EKIN. It was originally used to name the first traveling Nike sales reps back in the 1970's because "they had to know the product backwards and forwards, hence EKIN.

That dude is a friggin' ekin. He knows everything there is to know about Corvettes.

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