"The elephant in the room" is a problem that everyone knows is there but no one wants to acknowledge.
http://english.stackexchange.com/questions/104243/what-does-the-pink-elephant-in-the-room-mean
https://en.wikipedia.org/wiki/Elephant_in_the_room
I just learned about this phrase today, and that some people may confuse the possible double meanings of "pink elephant" as opposed to "elephant". Some will think of a pink elephant literally, and some will think that the context always means someone being drunk.
http://english.stackexchange.com/questions/104243/what-does-the-pink-elephant-in-the-room-mean
https://en.wikipedia.org/wiki/Elephant_in_the_room
I just learned about this phrase today, and that some people may confuse the possible double meanings of "pink elephant" as opposed to "elephant". Some will think of a pink elephant literally, and some will think that the context always means someone being drunk.