"My late grandfather (foster parent) was a religious Russian Jew who survived Stalin. He used to tell me that a Meshumed (convert from Judaism) was worse than an anti-Semite. Growing up in America, I scoffed at what I thought was an old shtetl saying." (source)
"They have this priest on the radio...From the way he talks, I'm sure he's a meshumad." (Glinert)