boink

from Jargon File (4.4.4, 14 Aug 2003)
boink
 /boynk/

   1. [Usenet: variously ascribed to the TV series Cheers, Moonlighting,
   and Soap]v. To have sex with; compare {bounce}, sense 2. (This is
   mainstream slang.) In Commonwealth hackish the variant `bonk' is more
   common.

   2. n. After the original Peter Korn `Boinkon' {Usenet} parties, used
   for almost any net social gathering, e.g., Miniboink, a small boink
   held by Nancy Gillett in 1988; Minniboink, a Boinkcon in Minnesota in
   1989; Humpdayboinks, Wednesday get-togethers held in the San Francisco
   Bay Area. Compare {@-party}.

   3. Var of bonk; see {bonk/oif}.
    
from The Free On-line Dictionary of Computing (8 July 2008)
boink

   /boynk/ [{Usenet}: variously ascribed to the TV series
   "Cheers" "Moonlighting", and "Soap"] 1. To have sex with;
   compare {bounce}. (This is mainstream slang.) In Commonwealth
   hackish the variant "bonk" is more common.

   2. After the original Peter Korn "Boinkon" {Usenet} parties,
   used for almost any net social gathering, e.g. Miniboink, a
   small boink held by Nancy Gillett in 1988; Minniboink, a
   Boinkcon in Minnesota in 1989; Humpdayboinks, Wednesday
   get-togethers held in the San Francisco Bay Area.

   Compare {@-party}.

   3. Variant of "bonk"; see {bonk/oif}.

   [{Jargon File}]
    

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