Now, we have all heard off BFF (best friend forever), and BFFL (best friends for life), but I made this one up.:)
B=best
F=friend
F=for
L=life
A=and
D=
death
"Dude, you're totally my B.
F.
F.L.A.D.!"
"God, you're so emo, get away
freak, go be BFFLADs with someone else!"