A bismarck is when you take your dick and slap it across someone else's face. If you are gay, then you will do it do another guy. If you are sraight, then you will do it to another girl. It is pretty nasty and sick people do that.
Take for example a conversation between a freak named Josh and his sister Jaime.
Josh: Hey Jaime do you want a bismarck?
Jaime: What is a bismarck?
Josh: It's when I take my penis and slap it across your face.
Jaime: Oh my god, thats nasty. I can't believe you said that. I'm telling mom.
Josh: Hey you still haven't answered my question. Do you want a bismarck?
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