mach keinen Scheiß

don't do anything stupid

→ machen
phrase Rare #44,016
don't do anything stupid A blunt, informal warning; depending on context, it can also mean “don't mess around” or “don't screw this up.”
GE: Mach keinen Scheiß und pass gut auf dich auf.
EN: Don't do anything stupid, and take good care of yourself.

Mach keinen Scheiß.

Don't do anything stupid.

— Montags in der Sonne (2002)

Mann, mach keinen Scheiß!

Man, don't do anything stupid!

— Die Welle (2008)

Stefan, mach keinen Scheiß.

Stefan, don't do anything stupid.

— Oh Boy (2012)

Mach keinen Scheiß, OK?

Don't do anything stupid, OK?

— Do the Right Thing (1989)