noun
A large, undeveloped, humid forest, especially in a tropical region, that is home to many wild plants and animals; a tropical rainforest.
As Tarzan walked down the wild cañon beneath the brilliant African moon the call of the jungle was strong upon him. The solitude and the savage freedom filled his heart with life and buoyancy. Again he was Tarzan of the Apes—every sense alert against the chance of surprise by some jungle enemy—yet treading lightly and with head erect, in proud consciousness of his might.
Any uncultivated tract of forest or scrub habitat.
A place where people behave ruthlessly, unconstrained by law or morality.
It’s a jungle out there.
The first-timer just doesn't know what's going on when he gets to jail. […] It's a jungle, you've got to look after yourself first.
A tangled mess.
[…] lost in such a jungle of intrigues, pettifoggings, treacheries, diplomacies domestic and foreign […]
An area where hobos camp together.
adj
resembling the fast-paced drumming of traditional peoples of the jungle.
She gave her first performance at the Philharmonic Auditorium in Los Angeles, offering festival dances, Moro tribal rituals, primitive jungle rhythms and rice harvest ceremonials.
Somewhere further up the valley a bunch of hippies were getting back to nature by loading up on mind altering chemicals and overwhelming their senses with five million decibels of digital bass and jungle beats.