F.i.b. Edit Meaning

1.

means "friends in bed"; another term for 'friend with benefits' or a nicer way of saying 'fuck buddy'.

friends who have a causal sexual relationship.

Soup is a most agreeable f.i.b.; he comes over, we fuck until we're both satisfied and then leaves.

See friend, bed, friends with benefits, fuck buddy, fuck, Sheila

2.

Finger in butthole-- The act of putting or pretending to put a finger in a butthole. Self Examplantory but i have to use 20 words because of urban dictionary law.

When u poke someones butthole you say "F.I.B.!!!!!"

See finger, butthole, brown, gross, butt