Hejo,
Wouldn't it be fun if our characters slurred their speech (when using text chat) when they are drunk?
The effect of slurring of speech would roughly last until the drunkenness effect wears off.
So, if you want the effect to last longer, simply drink more.
It would change up what a Player Character says in Chat, their text.
When I type: "So what were you saying about the dungeon?"
It might come out as: "Ssho what were you shayin' 'bout the dun...
Hic! dun-dungeon?"
Why add this to the game?
It would be amusing.
Fun.
It's good when games are fun.
On a basic level, it should be rather simple to impliment this, just some character replacement for text, introducing delays, and adding some hiccups.