contrary to popular belief, BBM does not stand for 'BlackBerry Messenger'; it bears a slightly more disturbing meaning. BBM is actually short for 'Big Black Meat', or so some Twitter users seem to think (one example being @BigBlackMeatMan). The abbrevaition is almost always used with the name Darelle, for reasons unknown. One thing is for sure, and it's that this word causes great confusion in the Twitterverse.
By Jennifer Kennedy. The Mariana Trench (also called the Marianas Trench) is the deepest part of the ocean. This trench lies in an area where two of the Earth's plates-the Pacific Plate and the Philippine Plate-come together. The Pacific plate dives under the Philippine plate, which also partially gets pulled along (read more about this collision under oceanic-oceanic convergence here).
The Mariana Trench is 11,033 meters (36,201 feet), (6033.5) fathoms deep. The Pressure at the deepest part of the Mariana Trench is over 8 tons per square inch. The coordinates for the Mariana Trench are 1121' North latitude and 142 12' East longitude. The Mariana Trench is 2, 542 km (1,580 miles) long and 69 km (43 miles) wide.