Cop On Meaning

Example :   That idiot has no cop on.2008, Joseph Dolan, "Hazards caused by pedestrians" (letter to the editor), Irish Independent, 22 November 2008:  While she is right that some cyclists do cycle in a dangerous manner, pedestrians need to have some "cop on" as well.2011, "Broadside at Croke Park", The Meath Chronicle, 11 May 2011:  Fixtures' secretary Jimmy Henry refuted the comments. "I wouldn't have got this job if I hadn't some cop on," he said.2012, Martina Nee, "Student with no ‘cop on’ fined for using his scientific brilliance for cannabis growing", Galway Advertiser, 29 March 2012:  Molloy’s solicitor said that there was a[sic] element of naivety here in that his client, who is “quite brilliant” in his studies in physics, has “no cop on” and took a “scientist’s approach” to growing cannabis.