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1.
Gokkun (go-kun)- Swallowing and or ingesting copious amounts of semen by either a man or a woman.
10 guys shot their loads into this chicks mouth and she swallowed every drop. The Japanese call it Gokkun.
by Kirakasa August 14, 2008
 
2.
see gokken, same as ,derived from sound onmatepedia of gulp
she gokken at bukkake
by trew February 14, 2005