Why do we say ‘like’ so much?

“Thirty years on, I can relate to the annoyance that the parents and older people of nineties Ireland must have felt when ‘My So-Called Life’ and the 1995 film ‘Clueless’ breached our shores with the ‘like’ phenomenon. Except this time, it’s ‘bro’.” So, says Emer McLysaght in her recent article in The Journal.But, what importance does slang hold in our vocabulary?Joining Shane to discuss this is Stephen Lucek, Assistant Professor in Linguistics and head of linguistics at UCD.