When you think about it, it makes little sense that one would look for treasures – chachkas, perhaps? – at a place named after bloodsucking insects.
Then again: “Mabel, wait until I show you the genuine Rolex I bought for a hundred bucks from the bloodsucker at the fairgrounds!”
It is indeed called a flea market, though.
Blame the French. The term comes from them, apparently in reference to the critters one could find on used clothing at street markets in the early 20th century.
However strange flea market might seem today, flee market should have made someone dash for a dictionary.
“Run for your lives! It’s the market!”
Hey, wait a minute. Maybe this reference was meant for an article about stocks.