A man (or young man) whose behavior is driven by the uncontrollable urge to prove that he's "more of a man" than the next guy. Always has to be first in line, always has to be the fastest, always has to drink the most, has to control the room, tailgates and weaves dangerously in and out of traffic to pass people, etc. Basically a Type A personality jacked up to extremes.
That testosterone jockey tailgated me in heavy rush hour traffic for 5 miles, then took a dive across 3 lanes to weave around everyone and almost clipped 2 cars in the process.
by StealthAGC June 20, 2013
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