Ich bin ein Scheisskopf.
Ich bin ein Scheisskopf.
no cussing...hahahahaha
Unless a Scheisskopf is something to be eaten, the proper German would be "Ich bin Scheisskopf." Using "ein" changes the meaning completely.
When JFK stood before the Brandenburg Gate and said, "Ich bin ein Berliner," what he was actually saying in German was "I am a jelly doughnut." To say "I am a Berliner," he should have said "Ich bin Berliner."