I used to think when a player put the ball in his own net it was called a home goal because that's what the older kids in school called it. Then at some point I noticed that TV commentators were actually saying own goal and it was abbreviated o.g. on the score sheet.
It's obvious to even the most casual football fan that a home goal is one scored by a team on their home ground but the erroneous usage is quite common, for example in this newspaper headline:
Piers Morgan's scores home goal as Thierry Henry comment leads to Irish heritage claim [sic]
So, does home goal qualify as an eggcorn?