An unkempt pubic region on a woman, where the hair is overgrown and covers a large portion of her crotchal region. Derives from the show "Laverne & Shirley." Laverne's bush was never shaved, whereas Shirley's bush was trimmed and coifed weekly, usually in landing-strip style but sometimes straight-up bald.
Damn dawg, last night I met a woman at the bar, got her home, removed those panties, and ka-plow! Laverne Bush!