An extremely old Japanese artistic convention is giving men bushy eyebrows. The manly oyaji usually has them, and it makes his expressions more imposing and tougher. A lot of older Shonen manga use this style to great effect. Unless it's specifically part of the art style, Big Ol' Eyebrows are a common Art Shift gag when a character is being overdramatic. Usually related to Evil Eyebrows and Hotblooded Sideburns. See also Big Ol' Unibrow. A Subtrope of Unusual Eyebrows. Examples of Big Ol' Eyebrows include: