Rules is simple - we start with A with something related to borderlands 3, we then go through the alphabet until Z, then we go back to A and repeat.
To check if the entry is already taken just press the magnifying glass at the top (or hit ctrl+F on keyboard) to get the forum search. Tick the “search this topic” box and write your entry. You’ll see each post containing the word without having to leave the page.
'oh and difficult letters like Q, V, X, Z can go in between the words.