Priceless...

In case you have missed it, Maddie calls "Connor," "Knacker."

Here is a little dictionary lesson...

From Wikipedia...

"Knackered" meaning tired, exhausted or broken in British and Irish slang is commonly used in Australia, Ireland, Newfoundland and the United Kingdom.

The term "knacker" is sometimes used in Ireland to denote an Irish Traveller though it is considered pejorative, and is sometimes used to refer to people of a perceived lower class who may not be travellers.

... often refers to senior police figures as "Inspector Knacker."

From Urban Dictionary:

Irish term of affection for general scum (low lifes). Originally originating from a term of reference for travellers. But nowadays covering whole spectrum of degenerates.