What does xfer do and mean?
What is lol mean?
How to get gold?
How to get items?
How do you attack someone?
Can you hack?
These are not my questions. But questions that I heard from the time playing Celtic Heroes.

Xfer - shortcut for transfer, such as transfering items between accs or worlds
Lol - Laughing out loud (shortcut as well)
How to get gold? - simple, lvl unelixired, farm, buy for cheap sell for more, plat if u want
How to get items? - depends on what items, quest items from quest bosses, rare items from rare mobs, event item from event mobs, quests, plat, etc.
How do you attack someone? - at the arena? i attack even if ik i'll die, just for the fun. On mobs? as a warrior ofc casting frenzy before im attacking, shatter, rupture to have DoT first, then pummel/double attack (i could use 2 pummels on one shatter, but after one of the patches it seems to have changed to start with 8 secs and not 10 secs, only on mobs, at the arena on ppl its 10 secs and im able to cast 2 pummels since pummel's cooldown is 8 secs)
Can you hack? Im not really trying to learn how to hack anything, sites, games, forums, nothing, if anyone can hack this game? i dont think that a good enough hacker tried to do that, i dont believe in that thing that nothing cant get hacked, mostly since ik many israeli hackers that hacked harder stuff, not to mention that hackers around the world (not just army's ones and etc.) are pretty good with it, there are even kids that are prob great hackers (i can give u an example for a kid)