1cop 
/ˈkɑ:p/ noun
plural cops /ˈkɑ:p/ noun [count] informal : police officer
▪ He threatened to call the cops on us. — see also cops and robbers, traffic cop
▪ He threatened to call the cops on us. — see also cops and robbers, traffic cop
it's a fair cop
Brit, informal — used to admit that you did something wrong and were caught fairly ▪ I'm annoyed about the speeding ticket, but it's a fair cop.
not much cop
Brit, informal : not very good
▪ She's not much cop as an actress. ▪ I'm not much cop at sports.
▪ She's not much cop as an actress. ▪ I'm not much cop at sports.
