šamar

1. slap in the face
   Opalila mu je šamar pred svima. — She slapped him in front of everyone.
   Kao dete je dobio šamar od oca. — As a child he got a slap from his father.
2. (figurative) slap in the face; blow
   Ta presuda je pravi šamar za porodice žrtava. — That verdict is a real slap in the face for the victims' families.

Usually used in opaliti / udariti šamar (+ dat.) and dobiti šamar.