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The principle of ejaculating whilst having a shower, having the sperm land on ones stomach, causing it to curdle up.

In essence, having a wank whilst showering.

Can also be spelt Schwank
"Guys, guys, i'm going for a shoank"
by Titot Prayoga September 27, 2005

Words related to shoank

schwank masturbation shower showering wank wanking