Used mainly in AIM conversations, it expresses discontent towards a specific situation (usually with the opposite sex). It should also be noted that it is the action of sighing, not just simply stating the word "sigh".
T: dude how are things between you and her?
C: shitty. she never talks to me anymore T: o, that sucks C: yeah, (sigh)
So drunk, you die. The sixth and final stage of the "Drunk" scale. Pronounced "ahh...", almost inaudibly, as if sighed from the lips of a dying person.