De or het smeerzeep?

The correct Dutch article is:

de smeerzeep

How to use smeerzeep

the smeerzeepde smeerzeep
this smeerzeepdeze smeerzeep
that smeerzeepdie smeerzeep
our smeerzeeponze smeerzeep
your smeerzeepjouw smeerzeep
every smeerzeepelke smeerzeep
which smeerzeep?welke smeerzeep?
a big smeerzeep / the big smeerzeepeen grote smeerzeep, de grote smeerzeep