1 definition by Phoenix732
In 12-step fellowships, such as AA, 'step 13' is an informal way of refering to having sexual relationships with someone of the group
Joe: I just did Step 13 with Mary
Mike: Wait, I thought it was twelve steps?
Joe: I don't think you realize what the 13th step is...
Mike: Wait, I thought it was twelve steps?
Joe: I don't think you realize what the 13th step is...
by Phoenix732 March 13, 2017