An arrogant egoistical person of mediocre achievements who has been labeled as “genius” through some strange circumstance, but the reverence for whom will gradually go into oblivion.
Some person: I just read this amazing 10000 page novel by blank.
Other person: what was it about?
Some person: some Czech guy’s summer in a secluded valley with a Schack.
Other person: that author must be such a Gustav Mahler.
Other person: what was it about?
Some person: some Czech guy’s summer in a secluded valley with a Schack.
Other person: that author must be such a Gustav Mahler.
by Fromadripunderpressure February 2, 2019
Get the Gustav Mahlermug. by niggaslayer327 June 17, 2021
Get the Gustavmug. by Sword_Knives December 31, 2021
Get the Heavy Gustavmug. 1. The short form for the popular gun the "Schwerer Gustav". This weapon is a German railway gun which was in use in World war II, this gun was destroyed as the Germans did not want their enemy to acquire the weapon after the war.
Person 1: Have you seen Gustav, that gun is so THICC!
Person 2: IKR! I wish it wasn't destroyed, then we could've visited it in a museum!
Person 2: IKR! I wish it wasn't destroyed, then we could've visited it in a museum!
by TheSchmer September 29, 2020
Get the Gustavmug. 
by Levamp Gustav February 6, 2025
Get the Levamp Gustavmug. by lowwwwwwwww May 21, 2021
Get the Gustavmug.