You also may want to add that a melon sword may sometimes have unbreaking on it from a user using an anvil.
Sorry if I'm making too many posts on this thread, but you may want to add anvil combos to the list as well.
[*S](short for [Sale], no *), [W] (short for [Wanted]), and [TR] (short for [Trade]). These are more for the forums, however, to keep titles shorter. Not sure if it is worth adding. PST can mean "please send tell." WTB can be "want to buy." All are more Internet-slang than ECC-slang.
Half of these things people are suggesting are more like texting lingo, not ECC lingo. ECC lingo is stuff exclusive to ECC, not to your phone -.-
This list is primarily for new players to know slang used on ecc. I don't think it matters if old time players know what something is because that is what I expect. Its the new players I am more concerned about tbh.
budder is a drug, kids. Butter is what sky calls it. Budder should be in the internet slang section, Sky is not an ECC user