These jokes are apparently an integral part of UK Christmas tradition. At dinner I encountered a Christmas Cracker for the first time in my life, just last week in England. Interesting concept, including many cheesy jokes.
Not the banana joke by your little lady though, that one was hilarious :)
Haaaaahaaahahahaaaaaa, it's not bad but it is firmly in the region of cracker jokes.
They are weird those things eh!