A particularly bothersome child. Or, depending on your feeling about children, any child.
"The movie was ruined by those crying vag turds a few rows behind us."
"Shit yes, I paid for the abortion. I don't need some vag turd ruining my life."
"Those vag turds at table 10 are destroying my section."
"Look, lady, if you don't shut up those rotten vag turds I'll break out a coat hanger and do it for you."