Janitor Yi
Animations and Model
Model: Janitor's uniform, he becomes fully 1-handed because he holds a mop in one hand and a mop bucket in another.
Walking: Walks holding the mop like a one handed sword and pulling a mop bucket (on wheels) with another behind him.
Running: Wheels disappear off the mop bucket and he carries the mop like he holds his sword in live right now, but the other hand holding the bucket with the bucket swinging and splashing water behind him as he runs.
Basic Attack: Whacks people with a mop. One of the attacks will be a thrust. (E on - the mop is wet with dirty water and he whacks them with that)
Passive: Bitch-slaps the enemy with the mop-head twice.
Q - No change
W - Slacks off leaning on his mop dunked in the mop bucket with a "Caution: Wet Floor" sign next to him.
E - Mop head turns wet and starts dripping with dirty water (I'd say dunk the mop into the bucket but that would be an unnecessary animation delay when this skill is normally instant).
R - Uses his running animation.
Special effect: When he gets a penta-kill, the entire map sparkles clean for 2 seconds.
Taunt animation: Picks up a Teemo (doll?), drops it into a garbage bin and claps his hands (the type of clapping that you make after finishing a chore).
Quotes
Game starting:
Time to take out the trash.
Moving:
Attacking:
Joke: (at ally) - My job, carrying trash.
Taunt response:
Ezrael - And you belong in a garbage can.
Can't think of any cleaning quotes yet but will update eventually with them.