(idea) by Shamus Fri Aug 18 2000 at 11:19:11
The final bit of icing on the cake you offer someone who has just made an obvious (to you at least) unreasonable demand:

"I'd like a full report in triplicate on my desk by lunchtime"
"Okay then, and would you like that with a cherry on top?"

Probable origin is from the delectable ice cream desert, a knickerbocker glory.

del.icio.us Facebook Digg StumbleUpon Reddit (I like it!)
Y'know, if you log in, you can write something here, or contact authors directly on the site. Create a New User if you don't already have an account.