similar to ullage, but referring to the emptiness of someone's head.

A bad thing in co-workers, tho a good thing in regards to the blonde at the end of the bar.
"So, how'd it go with that chick you hooked up with last nite?"

"Pretty good...with her dullage, I had her believing I was the lead singer of Muse!"
by bonnie_traid_in_boise December 30, 2010
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