When you're really excited to go on tumblr, and you've almost been craving it. It is the equivalent of saying "yum" before dinner, but instead it is used in regards to tumblr.
Ohh yumblr... I can't wait to get to my computer since I started following Skyler's blog.
Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.