Scheiskopf 

Pseudo german. A compound of "Scheisse"(=shit) and "Kopf"(=head) that forms the literal translation of the popular english insult "shithead". Doesn't really work in german, because "Scheiss-" is an equivalent of "fucking ...", so "Scheisskopf" would mean something like "fucking head".
"Scheissekopf" isn't an alternative, it doesn't work at all.

The boys looked up some words in the dictionary and came up with "scheissekopf".

Scheiskopf by Krazy Kraut January 18, 2004

Scheiskopf 

What the Germans call shitheads.

Gehen Sie zur Hölle, Scheiskopf! (Go to Hell, shithead!)

Scheiskopf by Das Hund September 6, 2003

scheisskopf

german for shit head.

alternate spelling is scheißkopf

Du bist ein scheisskopf!!!

scheisskopf by wraith August 30, 2004

scheißekopf 

"scheiße" means shit;
"kopf" means head.

Each word by itself makes sense in German; the combination of these two words does not make sense.

English speakers put these two words together to make a new word, "shithead". This works in English. Doing so in German, however, does not work.

Just ask any German-speaking person: they'll tell you "scheißekopf" makes no sense in German.

To avoid sounding like a dummkopf, don't use the contrived and inaccurate term, scheißekopf.

scheißekopf by iibuzne September 3, 2005

Sheiskopf

German for shithead

Rudy G says the dumbest things on fox, the sheiskopf

Sheiskopf by Murray Haldanish October 4, 2019

sheisskopf

The German word for "shithead".

Shut up, you scheisskopf!

sheisskopf by Tuddy-Uddy March 16, 2004

Scheisekopf 

Shithead, dummy, stupid boy, merry christmas (and a happy new year)

Filippo:
scheisekopf

Erica:
wats that mean??

Filippo:
it means merry christmas
in german
and a happy new year

Scheisekopf by Hangover December 21, 2009