simple enough : use the last letter as a first letter from the above phrase using only phrases that dota heroes say.
you must state which hero and when is it said ( if you choose the hero if you move or if you attack)

example:
Naga siren (choosing) : My song is yours

Yurnero (choosing) : Snatch the pebble from my hand grasshopper

if you ever get stomped feel free to say that you failed and restart with your favorite quote.
that's it , I guess i will start with 1 of my favorites :
Axe (choosing): You know what burns my ass? A flame about this high

For those of you who might not know, when you click a hero multiple times without giving other orders the hero starts saying new and usually funny phrases like the 1 above.

Moon Rider: "How may I serve the goddess?"

Silencer: Shhhhhhhhhhhhh

Chen:Hmmmmm.

Nerubian Assasin : my might cannot be matched

ES: Death to the enemies of the horde!

Juggernaut: "Excellent choice."

Luna Moon rider : Excercise stunning scenery? Heh, this beats prison duty any day

Pit Lord : you fail to amuse me

Traxex: End my torment.

Zeus: "That's more like it."

I've never played dota with sound

really? wow, but its kind of helpful during the game, it makes whats happening in the game much more clear, or like if a hero near you but outside the screen uses a skill like windwalk you can hear it , its also pretty funny when you listen to what the heroes have to say hehe.

Furion : The time is now

i just like this one too much that i can't skip the letter W,

techies:" Where's the minimap?" "I threw it in the lake." "Are you crazy?"

What?! Sounds good!!!
What's Happening!!! The best

The best of all dota hero sound is this one!
https://www.youtube.com/watch?v=PNbcQ_9kKU8&feature=related

i think nevermore's is better..
just keep clicking him and im pretty sure you will find it funny, im nit sure of the exact words but it goes like this:

*BRRING* *BRRING* Hello...... FOR THE LAST TIME IM A DREADLORD NOT A DRUGLORD!

so ok some revivle of the game il continue

Traxex : You're the lucky one

I really like Dwarven's where he gets drunk XD

Invoker: "Evil is near."

But no doubt this is by far the longest and most sadistic phrase ever...
"My blood cries out for the vengeance of my people's blood, which can only be repaid with at least twice as much blood! Or maybe three times as much blood! Like if you went to hell, and it was full of blood, and that blood was on fire, and it was raining blood, then maybe that would be enough blood! Eh… but probably not."

Anti mage: Run for your life

Lightning Revenant : Every man lives. Not every man truly dies

Gondar : Strenght and Honor

But the one i enjoy the most and i think it suits me so well(mostly because i have been trashed away for the same reason)

Traxex : I went on a job interview the other day and they were like; ‘Ugh whats that smell’, and I was like; ‘Oh sorry its me’, and then they said they didnt think I would be able to fit in with the other employees cause they were living and you know I’m dead so I wouldn’t be a team player, but then I said I could work 24 hours and they said; ‘Allright, you can work the graveyard shift’.

Link : http://www.playdota.com/heroes/drow-ranger#playsound1253277256-45

its so much funny to hear it

^Lina: I'm too hot for you too handle.
VS: I enjoy swapping.
Omni: Don't worry I have enough protection.
Techies: Foursome anyone? Let us rape you.
Sniper: You'll be stunned by the fact that I can shoot the furthest.
NS: I'm mostly active at night.

These are truly funny if you put them into "sick" contexts. Even though they don't exist, these phrases I mean, it atleast show their character

Nyways,

AM: "Revenge!"

Witch Doctor : Eekum Bokum

One of my favs Sniper : Guns don't kill people , I DO HAHA !!
http://www.playdota.com/heroes/dwarven-sniper#playsound1253118399-23