Compelled to Blurt... | Ask Metafilter

Like a lot of people in this Ask Metafilter thread, I thought I was the only person in the universe who made an unconscious little noise when remembering something stupid I did or said.

It's not especially loud, in fact it's often under my breath. The sound is usually just a quiet grunt, or a word/syllable or two. If I remember an embarrassing conversation, I tend to blurt out a random word of the conversation (as in, I'm replaying the dialogue in my head but then all the sudden one of the words pops out of my mouth). If it happens while I'm reading, I tend to blurt out one or two of the words that happen to be under my eyes at the moment.

For context, my tic (which can also be heard when someone near me does something dumb) sounds a little like the noise Leo Bloom makes after he falls on his keys (00:34). "Ooooooom...."