Lumpawaroo was the son of Chewbacca[1] and his wife Malla.[3] During the Age of the Empire, the Wookiees of Kashyyyk were enslaved by the Galactic Empire.[4]
When Lumpawaroo was young, he ventured down into the dangerous depths of Kashyyyk to find wasaka berries, which even adult Wookiees were reluctant to do. Chewbacca later recounted the tale, and how he missed his son, to the bartender Midnight, who wrote it in his journal.[4]
As a child, Lumpy's mother was taken from him and he was separated from his father. Waroo and other Wookiee children were forced to work as slave laborers at an Imperial child labor camp on the slopes of Mount Arayakyak. The Imperials prized the Wookiees for their small hands and their ability to climb for high altitudes.[1]
Waroo was a slave for most of his childhood and toiled under the supervision of Commandant Dessard. The Empire controlled the Wookiees by using inhibitor chips which sounded like a song of fire and terror. On one occasion, Waroo witnessed a female friend dying while trying to scale the walls of the daubcrete bunker. Following the liberation of Kashyyyk by New Republic forces in 5 ABY, the inhibitor chips in Waroo and the other child slaves were disabled. While Dessard and his subordinates managed to reassert their authority by using shock-lances and blasters, Waroo was encouraged by the demoralized state of the Imperial slave masters.[1]
Desiring liberty, Waroo made a dash for freedom while Commandant Dessard tried to close the pylon-gate. Waroo fled through the jungle by leaping through trees and branches. However, he came into contact with a spore-pod that had defoliated much of the surrounding jungle. Dessard and his men caught up with Waroo and prepared to execute him. However, the Imperials were then shot by Greybok, his father Chewbacca, and several New Republic soldiers. Dessard managed to escape the barrage of blaster bolts and was taken prisoner by New Republic soldiers. Waroo recognized his father and the two embraced each other after years of separation.[1]