Derogatory yiddish word for non jewish male. Often "spat out" of the mouth as if ridding ones mouth of an awful taste. Female counterpart is shiksa.
Oy, I can't believe Penny is dating a shaggitz. Her mother must have plotzed when she found out.
Don't worry. She's only doing it to get her mother to plotz (ie - freak out). But everyone thinks she's meshuga.