Interestingly, Chambers Dictionary has as its first definition of "purl" - "To flow with a murmuring sound; to flow in eddies" and (n) "A trickling brook (obsolete). What a lovely word. I shall be using it all week.
"The purling river"
"The purring cat"
Purler: Noun.
1. A forceful punch or hit.
2. Something that is excellent. E.g."It was worth paying twice the entry fee just to see that purler of a goal." [Orig. Aust.] A Dictionary of Slang
In the World Cup, Italy vs Ghana the Italian player, Pirlo, has just scored and the commentator has issued these immortal words: "That's a purler for Pirlo"
In Australian slang, purler has two meanings.
--- The first is a headlong or spectacular fall, ...
The usual phrase is to come a purler.
The sentence [She nearly did/came an absolute purler] would definitely mean She nearly had a spectacular fall.
--- The second meaning is something outstanding in its class.