I was a bit silly after a few drinks last night and posted a few choice words about my boss on Facebook. Can I get into trouble for this?

Yes, you can. You should delete the post immediately.

Facebook posts and other similar activity on social media are public, and employers are generally able to take disciplinary action in relation to such activity if there is a sufficient connection between the activity and your employment. You should be particularly careful if your employer is or can be identified through your social media activity, or if you are friends with any work colleagues. Even if you have not expressly named your boss in your post, there may be consequences if the identity of that person can be readily inferred.

If your employer directs you to attend a meeting to discuss this matter, you should contact the Association for support and advice.