Top Definition
An expression, often used as a greeting, referring to one's status of punctuality, and also pleasure, as well as success.
Dude 2: "What shakin', man?"
Dude 1: "On time and on top!"
Dude 2: "Totally, dude! The party just started, like, a minute ago! And nice Mercedes, by the way. Who's the babe?"
by Brad Slocum July 08, 2006
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