"Blarg tae aw da yids and swankers! (Hobo dave)"
My Google Search: Blarg! (i was bored, ok?)
Bored: Blarg. (said in soft, monotone)
Elated: Blarg! (In happy voice)
2. A sigh of boredom
2. Wow, I am so bored...blarg...
1) An utterance of complete bafflement (as noted many times the author of such bafflement may remain speechless with only the word "blarg" comprehensive for some amount of time)
see also: confuzlement
2) A vocalization of complete disgust. A short pantomime of a vomiting sound. In this case you might want to draw the "blarg" out more to sound like a more authentic vomiting sound.
3) A short sigh expressing sadness and frustration in the same instant.