Top definition
1. An acronym for internet and text message slang used in a derogatory manner to indicate that the person using the terms has a low IQ
2. The sound of running your fingers across your bottom lip and flicking it in a continual motion while uttering mmmmmmmm
1. I found it hard to make sense of her baby bable
2. A sign language version of expressing definition no 1
by zaneaussie February 26, 2009
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