>>4 First, type your screen name.
Then put an exclamation point, or a pound symbol (a hashtag for younger people)
After the exclamation point, you can put in a word, or a random jumble of letters/numbers, and it will create a tripcode.
Ex.
Ryukagoka !(word/jumble of characters) = Ryukagoka !(new jumble of characters)
Again, you can also put a hashtag in the place of the exclamarion point.
Ryukagoka #(word vomit)
You can test it out here, that is what this board is for. If you don't get it right, keep testing until you do.