to chase a donkey, mule or similar ungulate without any pants on. It is uncertain if that means the chaser has no pants on or if the chasee has no pants on. The dotted "h" sound is pronounced with a hacking phlegm, sort of like Achmed the dead terrorist. (pronounced ehl-deh-zuhm-*phlegm*ah-room-feh-juhs-kehr-day)
Fred: Wheee! I'm drunk as a stunk! Hey, where's Hector?
Tom: He's so plastered, he's out committing some eldezumḥarümphejuskerde!