Top definition
a bbm group or groups that are dedicated to sexual talk and picture trading after night fall. You can often find these group invitations on various social media sites such as twitter facebook etc... you might find also bbm groups like @bbm_match or @bbm_sexies in dedicated to exchanging bbm pins for finding bbm afterdark friends.
I'm horny who is ready for some bbm afterdark nasty talk?

Cum join my bbm afterdark group
by Jump off city October 20, 2011
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