In Teletubby land, specifically in the tubby bunker, the living vacuum cleaner that dutifully cleans the bunker all day long. He wiggles his snout around, making sucking sounds and ridding the Tubbies of excess dirt.
In one of the most disturbing episodes of the Teletubbies, the Nuu-nuu went crazy and started vacuuming everything in sight, including Tinky-Winky's bag, Dipsy's hat, Laa-Laa's ball, and Po's scooter. But soon the Nuu-nuu became overfull, began to shake uncontrollably, and (presumably) vomited all over the Tubbies' house in a cloud of dust. At least the tubbies got their favourite things back.
I always feel sorry for the Nuu-nuu; he seems underappreciated. Despite the claim that "The Teletubbies love the Nuu-nuu very much!", they often ignore him. Laa-laa even once pushed him away when she was annoyed by him. Ah, the twisted, sad life of the Nuu-nuu...