Idiosyncratic utterings characteristic of one known as the "Squeaky Guy" who performs a peculiar "squeaky pants dance" on his computer desk while a floppy disk is adhered to his forehead with a piece of tape. Usually said in rapid trimetric succession with emphatic inflection placed on the long "e" sound in the third "leeko."
"Leeko Leeko Leeeeeko! I'm a squeaky guy! I've got squeaky pants! Watch me do my squeaky pants dance!"