used to describe a person you have talked to that ignores you or pretends they dont recognize you when you see them randomly in public. they dont wave and wont return a wave or greeting.
Mr. Shnosberry drove Aurora and her friend Kate to the store. Mr. Shnosberry and Kate had never met before and got along well, talking and all. The next day Mr. Shnosberry sees Kate walking on the sidewalk, they make eye contact and Mr. Shnosberry waves at Kate who looks down and doesnt return the wave because she is waveshy.