Slang name for exotic dancers as used in Canada. I have not heard it in common use elsewhere. Likely related to the act of peeling off clothing during the course of their performances. Also used a term of reference for strip clubs, which are known as "the peelers".

Usage:

"I saw Jim at the peelers last night." - Jim was at the strip club.

"That's one good looking peeler." - That exotic dancer is very attractive.

I imagine this context could get you into trouble in Northern Ireland.