Top Definition
Adjective: a superlative state of stunned disbelief capable of knocking your consciousness to the floor in cognitive defeat before whatever stupendous incongruity you currently face.
I thought I'd heard ALL of my fiancee's family horror stories; but when she told me about her great aunt's retirement plan to be a geriatric call girl, I was floorbergasted.
by bergbachmetz March 24, 2013
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