Something that warrants a big smile, reminiscent of a smile you would see in a cartoon or on an advert where a sparkle comes from there mouth. Generally this is accompanied by a 'ching' sound.
"I just won the lottery" "dude, that's chingworthy"

"I just met my favourite celeb" " wow chingworthy!"
by Batlo8 February 2, 2010
Get the Chingworthy mug.