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1.
To have sex or casual relations with someone you work with. The consequences are risky; that you will be caught with 'company fish' or potentially loose your job, or just be stuck working in an awkward situation.... but you do it anyway.
"Damn, that boy is hot! Ima hit him up at the staff party!"

"Yeah he is, but I never fish off the company pier. After the last guy, we had a crazy fight in the lunch room later. I learned my lesson!"
by Canadaslang December 24, 2011