Susan listened to the chorus of the Lasmagi Djasmagi Cocek/Kyuchek over and over and phonetically transcribed the words. Here they are (in very approximate phonetic form), in case you want to study up so you can sing along:
Discoteki, Maraponi (Maretoni?)
Get up, ooh, get up, ooh
BTW, that music is performed by Orkestar Zornitsa on this CD:
Svatbarski hora, rachenitsi i kyuchetsi - Milena Records MR 200001-2
I ordered it on-line from balkanfolk.com in Bulgaria (using a pre-paid Visa gift card, since the idea of using my credit card on-line still makes me nervous), and was quite pleased with the service. They notified me by e-mail as soon as it was shipped, and told me to contact them if it didn't arrive, and it arrived (via Bulgarian Post and registered US mail) in about a week, no problems. It's also available at music-bulgaria.com
which is where I found the sound clip I linked to above.
Doing a google search for "lasmagi", I also found this interesting site: cocek.com which has such interesting titles as "Darth Vader Kyucheck" and "Robocop Kyuchek" .