sikken

Etymology
A contraction of.

Adjective

 * 1)  what such
 * 2)  what such, how
 * Sikke en dag! or Sikken en dag!
 * What a day!

Usage notes
As an adjective only preceding a noun in an exclamation of surprise, admiration, displeasure or regret. The pronoun  is used synonymously.

As an adverbial in the form sikke or sikken.