What does it mean for an iphone to be locked with fido?

I recently bought an iphone on ebay that said it is a fido iphone. What does that mean? Can it still work as an ipod?

Locked means that you can only use the phone on fido network and can't use it on vodafone or AT&T networks. Yes it should work like an iPod

This video will help you and answer your question

That means it can only accept SIM cards from the carrier fido. Yes it could still work as an iPod.