look up any word, like the eiffel tower:
Broadly exchangeable expletive that can be used to express surprise, excitement, remorse, anger or in fact any emotion.
Rich: I've just crashed, cillit ding!

James is a cillt ding individual.

Urban Dictionary: "Don't name your friends. We'll reject inside jokes and definitions naming non-celebrities."
Me: "Ah that is cillit ding"
by Jamie cillverstone November 11, 2010