Lyric discussion by foreverdrone 

my brother and I were not terribly original. odd that I happened to stumble onto this just now. there's a BBC radio show--I'm Sorry I Haven't a Clue--which has been broadcasting since 1972. a panel of comedians is "given silly things to do," according to the Wikipedia entry. One possibility is the Word For Word game. Inspired by the concept of word association, this is a game of "word disassociation"; each person must choose a new word, one with no conceptual relationship to the previous word spoken by another panelist. The article asserts, "this is surprisingly difficult to do," which my experience would indicate is correct. They may have been tougher in enforcing the rules than we were; for example:

...in one episode, a player said "cardigan" and the next "pier". Another then said "Cardigan has a pier" and was corrected: "Cardigan was a peer".

An error occured.