C|N>K
n.
[Usenet] Coffee through Nose to Keyboard; that is, "I laughed so hard I snarfed my coffee onto my keyboard.".
Common on alt.fan.pratchett
and scary devil monastery; recognized elsewhere.
The Acronymphomania FAQ on alt.fan.pratchett
recognizes variants such as T|N>K = ‘Tea through Nose to Keyboard’ and C|N>S = ‘Coffee through Nose to Screen’.
(The sound of this happening is, canonically, splork!)