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bbm prime time refers to using blackberry messenger while sitting on the toilet. This is when you use your blackberry messenger to send and receive messages while using the bathroom.

This is a time when you can sit on the toilet and send and receive blackberry messages to your contacts on your blackberry phone and have actual conversation with them.

bbm was coined in Winter of 2009-2010!
bbm prime time; blackberry prime time (sitting on the toilet)
by chiroamir December 06, 2010