Gokkun

Gokkun is a version of bukkake in which a woman or man swallows a partner's semen or spits it into a partner's mouth. This is commonly known as snowballing (sexual practice) in the West. Gokkun is an onomatopoeia, which translates into English as "gulp", i.e., the sound one makes swallowing. The practice is often mistaken for bukkake. Another such practise is gokkun-jedai, or "self-gulp."