Ahhh wild, spliff is interchangeable here. You get a lot of wannabee roadman/mandem rich boys in uni talking about spliffs and how wild they are and the rest if us like "do you want a joint or not?".

Now that i think about it tho, most people who use spliff are usually who obsessned over Ali g in da house and other adjacent shit like it made them gangster af (in their two up two down middle class surban estate) so maybe the use of the word comes from where you first got awareness of smoking from, American media or locally?