fleekのようなどんな単語でも探してください。
 
1.
Phrase used after saying something sexual to the opposite sex without actually implying a relationship .

Similar to friends with benefits
"Hey, would you let me tap that? Friends Only."

"Sex? friends only though"
Prodocyによって 2009年05月18日(月)
 
2.
A characteristic of blogging site like Livejournal
it allows you to write entries that can only be read by the people on your friends list. commonly known as FO
"my journal is friends only"
"i made a friends only entry"
okelayによって 2006年04月13日(木)