When two people dated siblings and then started dating each. Leaving the siblings high and dry.
Oh my god!

You dated her?
I dated her brother!
Did we just have a Carolina Carpool?
by Seanman97 July 2, 2018
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when a bunch of cheap kids decide to cheat the system
i was planning to ask my friends we should all pool in like open services of netflix, crunchyroll and hulu. Then we all pitch in for it. xDD CHEAPO STYLE
YOO, that's internet carpooling.
by HHHMMM YES July 26, 2014
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When 2 or more Mexicans are on a riding lawnmower at the same time.
I just saw a Mexican carpool. They were on their way to work today.
by Tatlaz June 5, 2017
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