I think I understand exactly what is meant now after your description Total Head, Thinking about it now I can't actually imagine what else tucking could refer to when rolling....
Noproes - Mate, First thing first, how dexterous are your fingers..? cause without a lot of practice if you don't have good control of your fingers you'll fail hard at rolling anything to smoke cigarette or joint... All you need to do is practice, I've never had a problem with joints because I'm terribly nicotine addicted and I roll cigarettes all day everyday
Secondly Noproes what papers are you using to roll with? it really does make a difference, I would suggest from my own experience that to start with rolling standard cigarette papers is just a tad bit easier than the slightly larger joint papers....