One of my favorite inside jokes would have to be the one between gwen and I. Gwen and I have dated some of the same boy's. We always regret our decisions in these boys. We have an inside joke on one of put exs and his new girlfriend if gwen or I say meow to eachother we start laughing only a few people know why meow is so funny to us. Theres alot of inside jokes I have with people but this one has to be probably one of my most favorite