De or het boeling?

The correct Dutch article is:

de boeling

Rule Words ending in -ing: almost always de. See the rule

How to use boeling

the boelingde boeling
this boelingdeze boeling
that boelingdie boeling
our boelingonze boeling
your boelingjouw boeling
every boelingelke boeling
which boeling?welke boeling?
a big boelingeen grote boeling
the big boelingde grote boeling