MBFN
Must Be Fucking Nice
Jack has the next week off of work because of sick days not used. He's already used his vacation earlier this year. MBFN.
Mbfn
Must be fucking nice
My best friend and her boy friend just made 2 year mbfn.
Mbfn
Must be fucking nice
You have 3 days off this week mbfn
Mbfn
"Must be fucking nice"
Mbfn=An exprecion to difene a feeling .