De or het dollardaling?

The correct Dutch article is:

de dollardaling

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

How to use dollardaling

the dollardalingde dollardaling
this dollardalingdeze dollardaling
that dollardalingdie dollardaling
our dollardalingonze dollardaling
your dollardalingjouw dollardaling
every dollardalingelke dollardaling
which dollardaling?welke dollardaling?
a big dollardaling / the big dollardalingeen grote dollardaling, de grote dollardaling