Feature in Private Eye magazine reprinting mildly amusing gaffes that people (mainly sports commentators) have made on the radio or TV.
Named after the commentator David Coleman who has a reputation for making a few of these.
A couple of examples from a recent issue to give a flavour:

"There's Thierry Henry, exploding like the French train that he is." DAVID PLEAT, ITV

"Sex with a mistress greatly increases the chances of having a stroke." FEMALE NEWSCASTER, Channel 5

"The defender was lightning slow." RON ATKINSON