I would also call it a slip. If I read your OP correctly, you drank a lot for one night than stopped. If you had continued to drink after that, than I would call it a relapse. But all of this is just words. What matters is what you think and that you go back to being sober. 3 months is a big accompolishment. Take credit for that. You said you drank and didn't blame it on anything or anybody else. Good for you for taking responsibility for the choice you made. John