When a girl gives a guy a blowjob and he pulls out and cums on the upper lipand then punches her in the nose breaking it causing it to bleed into the cum, the guy then takes his penis and mixes it up.
Brandon: Did you hear Alex gave Super Hoe a Danish Bismark!?!
Shane: What really no way!!?!
Alex: Ya it was great Super Hoe loves receiving a Danish Bismark!
After recieving oral sex, a male will pull his penis to one side and release using hip movement to strike the female on the cheek. If properly executed the resulting red mark is known as a bismark.
"This Crohn's is murder, I've had to bomb the Bismark 3 times this morning."
or
Tim: "Where are you going Tom?"
Tom: "Bombing the Bismark, that bran has gone right through me!"