What is the meaning of Holk?
A hollow cavity.
To dig out; make hollow; hollow out.
To dig; dig into; pierce; penetrate; investigate; poke.
To dig up; excavate.
hulk (large cargo ship)
a nest box, a birdhouse
a hulk, an old, decommissioned ship (used for storage or housing)
a pipe stuffed with cannabis, or more rarely a joint
Source: wiktionary.org