Sentence:  In the drinking that follows that afternoon it is a wonder that no one dies of alcohol poisoning. The final kegs die at around 1800 hours or so, and that is when Coolidge's wife Melanie starts making her <WSD>souped-up</WSD> Atomic Kamikazes. 
Meaning of the word marked with <WSD> tags:  Of an engine, a motor vehicle, etc.: modified for higher performance.