A term used to describe any form of smegma or other foul crusty substanceproduced by the human body. Usually found in crevasses or folds of skin due to the fact of bad hygiene.
Person 1: that's such a funny joke lol
Person 2: i know eh? scak
Person 1: SCAK IS NEVER GOING TO CATCH ON!
Person 2: it will now that it's on urban dictionary :) scak
To jizz on a girls' face and throw sprinkles on her face, thus looking like a cake. Option to put candle in mouth and blow it out for birthdays. Then for party purposes share with friends.