I recently bought 
and really enjoy him. So naturally I want to learn him in every role so I don't ever have to play other champions. So how do I jungle as Gangplank? I tried it once and did't even come close. Thanks!
Edit: From what everyone has said, it appears that it wasn't just me and gp really just can't jungle well. Thanks for all the feedback
MadManApocalypse3 votesDefinitely not the best since his Q is his source of earning doubloons, he has great sustain but overall he's a ganking jungle and just split pusher. You'd have to run a tankier build since your gold income won't be enough to build damage... which is what makes him great.
DragonManSquid1 votesOk thanks
Elisheva1 votesAnyone "can" jungle, coming from someone who autolocks nami jungle if my team is being a bunch of assholes : ^ )
DragonManSquid1 votesReally? I just choose someone like blitz, garen, or gangplank. Then ks and carry the game one cheese at a time.
Elisheva1 votesIt's so satisfying sending a tidal wave through a wall and calling it a gank.
DragonManSquid1 voteslol
ThugWalrus1 votesI mean technically he "can," but by every metric it's pretty garbage.
-No access to constant minions reduces gold income and also Silver Serpents delaying important powerspikes since he needs expensive items. -Weak itemization since you will probably go Warrior enchant. GP likes Crit (or to a lesser extent Lethality), neither of which are given by Warrior. -If you go cinderhulk you will be tanky. Tanky GP is meh since you have no hard cc and aren't a good frontliner. -Ganks are weak since you need time to setup barrels allowing the opponent to run or re position. Ganks are alright with ult up, but ulti cooldown is super long. -Since ganks are weak without ult, no map pressure early game -Farming is slow unless you build Attack speed, which is a pretty bad stat for GP since you can do most of your damage at a range. -Low base health compared to some other meta jungles + lack of escape = susceptible to invades. -Mana hungry early game means first few clears are tough. You have to spam Q on cooldown and W is a huge mana sink.
Still though if you want to try it out it's kind of fun. I recommend trying to go semi-tanky and try and run people down with barrels + passive true damage. Something like 
If not you can try the standard build on him, but your triforce and IE are going to be suuuper late with the reduced jungle gold.
BeatzBoyFTW1 votesSo naturally I want to learn him in every role so I don't ever have to play other champions.
One-tricks are highly looked down, please just don't.
DragonManSquid1 votesBy who? I don't think anyone looks down on Yassuo. Or would you say he doesn't deserve challenger, and wen't on a 4 kill spree because of luck. I'll play the game to have fun, not to please my team mates.
CoolPapaK1 votesHonestly I think most characters could jungle just get some jungle items and smite and jump out and help the lanes when they need it. Just my opinion, but I am still a new player still learning by reading about and playing the game.