Post by Rankkor
The main problem is that the languages of warcraft are not full blown actual languages like what Tolkien did with elvish dwarven and orcish in Lord of the Rings.
Languages in warcraft are actually simple parsers that replace words in english with rough equivalents that vaguely sound like what you'd expect the language to sound like.
The language algorithm used by the in-game "translator" merely makes the words
look like Orcish. It does not actually translate words. Therefore, translated in-game speech isn't true Orcish.
In the case of Warcraft Orcish (Which is the standard language of the horde, and the one used by all races of it regardless of racial background), if you write a 4 letter word, the cypher simply replaces it by one of these at random: Rega, Nogu, Tago, Uruk, Kagg, Zaga, Grom, Ogar, Gesh, Thok, Dogg, Maka, Maza. 3 letter words are replaced for one of these at random: Lok, Tar, Kaz, Ruk, Kek, Mog, Zug, Gul, Nuk, Aaz, Kil, Ogg. And single letters are replaced by one of these at random: A, N, G, O, L
So if you log on an orc character, and stand next to a human, and type "I love you" several times in a row, that human is going to see multiple combinations that will look like this: "G Tago Zug" "A Zaga Lok" "O Ogar Nuk" "N Rega Ruk" and so on and so forth.
There are a few words that have actual translations, which are used in the novels and background lore (For example, the rallying cry of the orcs, and the horde in general, is Lok'Tar Ogar, which translates to "Victory or Death") but not really any related to love. The closest one I can think of is:
Aka'Magosh = A blessing on you and yours.
And a similar one: Bin mog g'thazag cha = I will protect you.
The main problem is that orcish culture is centered primarily around battle, they are a nomadic warrior society, and while love is a strong core of their identity (They are fiercely protective of their clan) its not intoned in battlecries or warcries used in battle (Which is where we see orcs speak their native tongue in the lore).
For more information:
http://wow.gamepedia.com/Orcish(##RESPBREAK##)520##DELIM##Rankkor##DELIM##