Whisper-shout 

The act of screaming at someone without using any vowel sounds, so as to keep the volume of the scream down to a nominal level. Similar to the well known "SHHHH!" but it is actually a word or a group of words. Often used in classroom or library settings, it can also be useful in churches or as a warning that someone unwelcome is approaching.

You are in your cubicle talking with a co-worker about the really weird dude down the hall. As your co-worker is launching into a story about the guy, you see him approaching. You let out a long whisper-shout saying "Stoooopppppp!!!" just loud enough for your co-worker to hear. Fortunately, the whisper-shout has again saved the day, and the weird guy will not be taking you out when he goes on his shooting rampage.

Whisper-shout by David Bolen October 5, 2006

Whisper shouting

Great way to think your yelling, when actually noboddy can hear you.......usually after many faild attempts at mouthing something.

Whisper shouter:
Hey going out today???

Reciever of whisper shout: What the heck is Bill whisper shouting over there??? I still can't tell.

Whisper shouting by M_N_H!!QW August 25, 2009