PBP

See platelet basic protein.

PBP

Picture-By-Picture

PBP

Play-by-Post. Usually played on a web forum, though it is possible to PBP in any content sharing medium. A slower style of play, but often incorporates much more depth to character role-playing.
Found on http://rpggeek.com/wiki/page/RPG_Glossary

pbp

Please Be Patient
Found on http://www.noslang.com/dictionary/p/

PBP

See Prescription Benefit Plan.
Found on http://www.encyclo.co.uk/local/20102
No exact match found