Lazier default

It is not a set phrase that I have ever heard. What is the entire sentence?

AlpheccaStarsIt is not a set phrase that I have ever heard. What is the entire sentence?

"One of the lazier default insults aimed at Stoke City is to ask if the game's great and good - didn't someone once even pose the question about Lionel Messi? - can "do it on a cold, wet night" in The Potteries." [From the BBC web site.]

Anonymouslazier default

You may be parsing the sentence incorrectly. There must be another word or two before or after these words that combines with these to make some meaning.

CJ

AnonymousOne of the lazier default insults

What did I tell you? "default" modifies "insults". "insults" is a noun.

One of the insults which lazy people make by default (because they can't think of a more novel insult)

CJ

Thank you, CJ, for your useful reply.

And What's the role of 'lazier' here?
Is it a noun?

soheil1And What's the role of 'lazier' here?

It is an adjective, modifying the plural noun "insults."

Why is it that 'lazy' came before 'default'?

soheil1 Why is it that 'lazy' came before 'default'?

Because the phrase "default insults" means insults that everyone resorts to in a given situation.
The modifier "lazier" means that there is a group of these "default insults", and some are more lazy than others.