Jugger is likely misspelled.
Jugger has no English definition.
As a noun juggler is
agent noun of juggle; one who either literally juggles objects, or figuratively juggles tasks.
jugger
Translingual
Noun
(head)
----
juggler
English
Noun
(
en noun)
Agent noun of juggle; one who either literally juggles objects, or figuratively juggles tasks.
A person who practices juggling.
A conjuror.
(dated) A magician or wizard.