this fair used to be good, but now there are mostly fly-by-nighters trying to palm off greasy pizza and birkenshlock
imitation alternative-health merchandise, pseudo-spiritual chochkas, and cheap novelty accessories offered at most open-air fairs and by two-bit street vendors in college towns
"this fair used to be good, but now there are mostly fly-by-nighters trying to palm off greasy pizza and birkenshlock" What is the definition of "birkenshlock"?