When one is in their car driving around the same block or up and down the same street to impress someone in their hotted up car (mainly the ladies)
Look at those nob heads doing happy laps!
by Mannydaman May 24, 2006
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The state of arousal of the reproductive organs, often obvious and embarrassing, especially for men.
"I sat and told Santa what I wanted for Christmas this year. He totally had Happy Lap!"
by qpkarl February 4, 2020
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