Later, best friend
Thanks 4 talking w/ me 2nite. LBF!
|cul8r||See you later|
|CYL||Catch ya later|
|TTYL||Talk to you later|
|XOXO||Hugs and kisses|
|BFF||Best friends forever|
|BFAW||Best friend at work|
|BFFLAB||Best friends for life and beyond|
Your BFF might use LBF to mean "later, best friend." You're most likely to encounter this sign-off at the end of a chat or text conversation, when you're speaking with a very good friend.
If you receive LBF from someone who you do not consider your best friend, you may want to inform them of their current status re: your friendship. Or, you may want to just let the person continue living their fantasy. After all, everyone should have a best friend.