Celebrate this historic day with us #TeamBB! The word #BBM has officially entered the Collins English Dictionary: cot.ag/Q4L0Kh!
— BlackBerry UK (@UK_BlackBerry) September 13, 2012
The term BBM as you can see the in above tweet by @UK_BlackBerry, that today should be a day of celebration as BBM has entered the Collins English Dictionary. The actual date of publication is actually September 5th, 2012. Check it out via Collins English Dictionary.