Charlotte Crosby has slammed I’m A Celeb Geordie Shore star Charlotte Crosby has slammed I’m A Celebrity… Get Me Out Of Here! challenges as a “piece of p**s” in a scathing Tweet. Charlotte, 28, took to Twitter to tell her 3.13 million followers what she plotting of the show, during John Barrowman ’s terrifying underwater challenge on Wednesday’s episode. “Im not being…