Big boobed Gemma has a habit of posting really bad jokes on twitter. So we challenged her to make us laugh if she does then Jen is going in the gunge tank. However if she fails then the joke is on Gemma and it's her who is getting gunged.Gemma has a minute to bombard us with her best material (and to warn you by best I mean cringe worthy!) and make just one of the crew including guest host Patience, Jen, Henry and Guest0 laugh. Awaiting the loser from above is a load of green and pink gunge and of course it goes without saying the loser has to go topless in the tank too. This one is definitely for those who like to see a girl squirm whilst being gunge as I don't think the loser enjoyed their deluge much. It's also a good instructional video of "what not to do" for budding comedians! If you don't want to know who had the last laugh then look away now as here come some vidcaps.