I will start with why Wukong is my favourite champion. Wukong can snowball as hell if you start with a kill or two. And you can still turn the tables if you messed up your lane. I will try to help you with everything if you want to ask something you know where to write it ;)

Pros

Can do Pro Plays with Warrior Trickster

Has Armor Penetration with Crushing Blow at Level 1

Good CC with Cyclone

Very nice Passive in Team Fights

Nice combos

Snowballs

Heavy damage at level 3

Cons

No CC till 6

No survivability

Mana eater if you harras too much

Easily get countered

21 points to offense 9 point to defense

Marks

Flat AD the best thing you can have because you already have Armor Penetration with your Crushing Blow. And your skills will be more scary.

Seals

Armor for a little survivability and seals are just very goo at armor :P

Glyphs

Magic resist for a little survivability.

Quintessences

Same with marks Flat AD.

Now its time to review items. We'll start with boots

Mercury's Treads If their AP carry is fed or you need tenacity.

ninja tabis If their AD carry or Bruiser is fed.

Black Cleaver YOU MUST BUY THIS ITEM Armor Penetration , AD and some Cooldown Redution is really cool

Ravenous Hydra AD , Health Regen , Lifesteal real deal. You should get this.

Frozen Mallet AD , Healt and Slow in every hit very nice item.

Maw of Malmortius Magic Resist , AD by missing health and barrier against AP based skills you should get this if you are against fed AP Carry

Sunfire Aegis Armor , Health and 40 magic damage per second to nearby enemy its really good with your Ulti.

Iceborn Gauntlet Armor , Slow after an ability , your Crushing Blow will be OP as hell.

Randuin's Omen If their AD Carry is fed it will slow his/her Attack Speed and its active works with your ulti really good.

Thornmail Meh , but still usefull

Spirit Visage Nice magic resist and cooldown reduction if you wanna buy it i think you should get Lifesteal either

Atma's Impaler Armor , Crit Chance(meh) , and AD by your full health its good if you bought some Health items or want Armor and AD either in one item ^^

Bloodthirster SNOWBALL Very nice AD and Lifesteal

Infinity Edge You may think for AD.

HARRASING
Thats where your real play is begin. Harras your enemy with your Crushing Blow since its range has buffed its OP. When you get 2 W>Q is very good but use it wisely if you dont have ward i dont recommend it. And now you are 3 thats is the part you'll hurt more your E>Q>W combo will hurt so much if they underestimate Wukong. When you are 6 it will be time for real fun ^^. E>Q>R>Ignite>W and he is now dead man.

FARMING

Don't ever use your skills on creepss if your enemy is near you wouldn't want to be Out of mana in fight becaouse your skills is hurting too much not your Auto Attacks.

That's it i hope you like it. Thats how you will have fun and be fed. Correct me and ask something please ^^.