1 definition by Blackhole18

Top Definition
An inexplicably and undefineably speedy person. They're very competitive in nature and are constantly making bets or challenges. Upbeat and energetic and always seem to sneak up and disappear without being seen or heard. Commonly referred to as a mouse or roadrunner and are normally small in stature yet surprisingly incredibly strong and powerful. Athletic, especially in aquatic or racing sports. Usually become antisocial when they are tired or grumpy.
Wow, where did she come from?
I dunno! She's definitly a beeper.
by Blackhole18 April 30, 2009

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