Transliteration of the name “阿官”, which means “transvestite” or “transsexual”. Generally used to describe men who are perceived as feminine or homosexual.
A roar-like expression most frequently used by a dominant alpha male while displaying his obviously superior physical strength to other males, or to himself in a mirror while flexing biceps.
As Terry confidently rolled up his sleeves to reveal his protruding biceps, he passionately gazed into his washroom mirror and asserted with a rumbling roar: "AH-KUM-BAHHHHH!"