It translates to an extremely offensive anatomical insult directed at the mothers of Fenerbahçe supporters. In terms of its "features" or how it is used in Turkish football culture:
The phrase you mentioned is a vulgar Turkish football chant used by supporters to insult their rivals, Fenerbahçe . Fenerbahce Ananin Ami
: Online, it is often shortened to the acronym #FAA . It translates to an extremely offensive anatomical insult