sleestak...

for some reason or other i had the burning desire to know how to spell sleestak. like land of the lost. cha-ka. rafting etc. my dictionary is useless, being of mid-fifties-ish stock. who to turn to? imdb, of course. sleestak. phonetic. darn! i was hoping for something a little more otherworldly. something evocative of lizard-men.