kankeren

Etymology
From. The sense “to complain” originated in the Dutch East Indies.

Verb

 * 1)  to grouse, to complain
 * 2)  to proliferate

Usage notes

 * To Belgian speakers and older generations in the Netherlands kankeren is a relatively neutral word, lacking the offensive connotations of or  and considered as appropriate for written language. To younger speakers in the Netherlands, approximately those born in the 1980s and later, the word more or less has the same connotations as kanker- and kanker. These Dutch younger speakers tend to view older speakers' relaxed attitude about kankeren and proscription of kanker- as a hypocritical double standard and will regard the word as inappropriate for use in normal written language.