One who tries to be something he or she is not destined to be. The word originates from the great tale of the Rhino who wished to be a Bumblebee. He tried re-attaching his horn onto his ass after tearing it off his forhead, for the stinger, and also painting yellow and black stripes across his body. He went looking for a hive to meet Bumblebee friends, he found one but could not fit inside. When he tried, the hive came falling to the ground which resulted in all the Bumblebees giving the imposter painfull stings all over his body. He then washed off the paint, and put his horn back where it was supposed to be, and went back to his Rhino friends. He was teased and called a Rumblebee for the rest of his lifetime, and that is how the word came about.
Elaine was being a real Rumblebee today, did you see how she was trying to be a punk like Dennis? That is so not her style.
by Mike June 27, 2004
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