Joke Insurance
When two mates have a mutual understanding to laugh at each others jokes, no matter how lame or awkward said joke is, therefore lessening the social failure of the bad joke.
I was talking to some girls the other day when I cracked a ‘your mother’ joke. Luckily, I had joke insurance with Chris so I still ended up getting both their numbers. All Chris got was a weird look for his over-the-top laugh.