1 definition by The Egregious Bone
A small rucksack with a velvet and/or tribal pattern on it, typically carried by those wishing to appear hipster/indie.
Person A: "She thinks she is so cool carrying that velvet tribal patterned rucksack"
Person B: "Yeah, she definitely thinks her twatpack is the one"
Person B: "Yeah, she definitely thinks her twatpack is the one"
by The Egregious Bone April 30, 2012