Someone asked the difference between pwned / owned. I saw it in the edit queue. I almost voted to delete, but ended up skipping it because I wasn't sure. Would this be considered "very low quality?"
Slang is on-topic, but "what does a word mean" is usually not, because there are places to go to look up definitions. We have a list of general references and we expect that users try some of those. If they can't understand what they've found, or come up empty-handed, and they explain what research they've done and what their problem is, then their question is on-topic.