Litter

Litter (TV: Dr. Who For Keep Australia Beautiful, The Mark of the Berserker) also called rubbish, (PROSE: Dummy Massacre, Contributors) and trash, (TV: The Lodger, Praxeus) was a type of discarded item. Litter could be contained in bins.

Additionally, both rubbish (TV: untitled, Deep Breath) and trash (PROSE: The Story of Fester Cat) were used as terms to impliy something was of poor quality. (TV: untitled, Deep Breath, PROSE: The Story of Fester Cat)

History
In the late 2000s, Paul Langer facetiously asked his son Clyde if he was dropping litter on the streets when he found that he was keeping a secret. (TV: The Mark of the Berserker)

In 1979, a computer provided the Fourth Doctor a new data-scan, which among other things, mentioned that Australia was "littered". The Doctor resolved to visit Australia to ensure that it would continue to be beautiful. (TV: Dr. Who For Keep Australia Beautiful)

In the 2000s, Kelly Hale lived in Stumptown, where the litter recycled itself. (PROSE: Contributors)

In 2010, the Eleventh Doctor used various items of trash in the bin in Craig Owens's home to make a remedy to cure the effect of him touching the rot on his ceiling. (TV: The Lodger)

Undated events
Space Florida had automatic sand that cleaned up lolly sticks by itself. (TV: The Big Bang)

As an insult
In the 1890s, the Twelfth Doctor called the Clockwork Droids under Mancini's Family Restaurant, "Rubbish robots from the dawn of time!" (TV: Deep Breath)

In the 1980s, Ron Rat once described Doctor Who as rubbish. (TV: untitled)

In the 2000s, a drunk poet called Paul Magrs's Brenda and Effie novels "trashy". (PROSE: The Story of Fester Cat)

On 5 March 2005, the members of the band No Hot Ashes felt that that name was "rubbish" and so changed it to Bad Wolf, although they ditched the name within the day given they considered it to be bad luck after the Nestene invasion. (PROSE: Rose)

In 2010, the Eleventh Doctor considered vortex manipulators to be a "rubbish" way to time travel. (TV: The Big Bang)