Definition 1 of 1
Skull (usually in reference to a bald head). Kottay's are meant to be kolted
Oddly enough, "Kottays" in the plural refers to a man's testicles.
Consequently, all usage of the phrase (see example below) is automatically hilarious.
Look at his Kottay all nice and shiny!
Added 2011-06-30 by Kannadoggy