The Hobbit, “Over Hill and Under Hill”. The cave the company were resting in turned out to be the Goblins’ Front Porch, and in the middle of the night Goblins came to capture them, singing as they carried their prisoners in.

Clap! Snap! The black crack!
Grip, grab! Pinch, nab!
And down down to Goblin-town
You go, my lad!

Clash, crash! Crush, smash!
Hammer and tongs! Knocker and gongs!
Pound, pound, far underground!
Ho, ho! my lad!

Swish, smack! Whip crack!
Batter and beat! Yammer and bleat!
Work, work! Nor dare to shirk,
While Goblins quaff, and Goblins laugh,
Round and round far underground
Below, my lad!

Provided by: Ainulindale