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).
Location of the Mariana Trench. The Mariana Trench or Marianas Trench is the deepest part of the world's oceans. It is located in the western Pacific Ocean, to the east of the Mariana Islands. The trench is about 2,550 kilometres (1,580 mi) long but has an average width of only 69 kilometres (43 mi).ocation of the Mariana Trench. The Mariana Trench or Marianas Trench is the deepest part of the world's oceans. It is located in the western Pacific Ocean, to the east of the Mariana Islands. The trench is about 2,550 kilometres (1,580 mi) long but has an average width of only 69 kilometres (43 mi).