A friend that you are extremely close too that as soon as something bad happens you automatically dial their number. They understand what you say and dont judge you. You dont care if they steel you inside jokes or random words even if you do with other people. Normally, you can do anything around them or with them and not care what people think. (ie. look like lesbians)
Liz and i are best friends. We are very open with eachother about serious subjects and joking ones.