@pspana, I don't know about "szpejna", I only know that there's a slang word "szpej" which means "equipment, gear, tools" - stuff like this:
I have no idea where this word comes from and how old it is though.
Or, perhaps Szpejna is a shortened version of longer surname?
There's a Polish surname "Szpejna", so not necessarily.
There are also other Polish surnames beginning with "szpej", btw: