Tory MP Peter Luff invited media secretary Tessa Jowell to view the website for the popular kids TV show.
"You can join me in playing 'How Low Can You Bungalow', a test to see your response to grossly embarrasing situations, largely of a lavatorial nature; 'Pants Dancers in the Hall of Fame', photos of children with underwear on their head; 'Make Dick Sick', a game which I think largely speaks for itself; and 'Bunged Up', in which you play a character in a sewerage system avoiding turtle poos coming from various lavatories."
Jowell backed the corporation by saying: "It is the BBC's job to determine standards of taste, decency and appropriateness."
The BBC issued a statement saying: "It is pure fun and entertainment, aimed at eight to 12-year-olds, so it is unsurprising that it doesn't appeal to some adults.
"We do take our role as a public service broadcaster seriously. Any criticisms are always looked in the context of the target audience for the show and its remit to entertain young children."
Last year, co-presenter Dominic Wood was rapped by watchdogs for wearing a "Morning Wood" T-shirt during a broadcast to almost 1m children on CBBC.
The BBC is now vetting the clothing worn by the children's TV presenters.
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