I would just say "oh sorry -i'll leave so you can talk some more about me". And usually one of them talking nasty about me owes me money so I might also interject "by the way, you got that $20 you owe me?"
The old me would have told them all off. The new me would calmly gain their attention and say, “You all could at least have the decency and courage to tell me to my face how you feel.” I then would walk away. I’ve learned most people will talk about you behind your back and never to your face. I just don’t care these days. I’m not on earth for a popularity contest.
"I'm telling you that it is SOOOO big that I couldn't do a thing with it! We couldn't make it fit no matter where or how we tried, and believe me, we tried every way you can imagine!"
I think I'd just let this one incident of gossip slide, Carbie.