Grambler

Grambling is a slang term whose exact origins are unknown but is generally thought to have originated in California as a combination of "gambling" and "rambling". It can describe living an unconventional, adventurous and sometimes risky lifestyle associated with traveling, independence, playing music, and having fun, and can be a catchall synonym for any and all of these activities. Gramblers are spirited and fun-loving, rough around the edges, and tend to disregard societal norms in favor of a good time.

A grambler is someone who doesn't give a shit about you. They purposely try to ruin your live by making you miserable.
They eat graham crackers too. who the fuck eats graham crackers.

Komischer, Merkwürdiger
Grambl = Komisch