It is similar to SWIM. Mostly used in drug forums to not self-incriminate.
AFOAF did Ecstasy for the first time last night.
AFOAF, is used in place of "I".
An acronym meaning "a friend of a friend". Often used to avoid self-incrimination and/or describe personal experiences through the use of another persons identity.
"Last night afoaf was pulled over doing 80 in a 40. He also happens to drive the same car as me."