Describe symbolism in Krapp's Last Tape by Samuel Beckett

The first symbol of the play is Krapp's name. Its spelling is different, but it sounds exactly the same as the well known slang word for excrement. The playwright might be suggesting that Krapp thinks that what he's listening to is crap, or that his life as a whole has been crap. In other words, the character isn't taking what he's listening to seriously.