1 definition by Cory Merrill

(noun) 1. <primary>Any protruding endcap inwhich you cannot recall the name of 2. Any of various devices functioning like or resembling a nipple 3. Seperate item inside of a mechanical device that serves a function in the form of an appendaged
The plastic didos on the end of your shoelaces.
by Cory Merrill January 12, 2006
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