Top Definition
It's a sexual act, while having sex in the jacuzzi, you hold your partners head under water( hence the jacque cousteau). After you let them up, while they take a deep breath, you pull out, jack off and shoot your load in thier mouth.
Last night after dinner and some wine, my girlfirend and I were in the jacuzzi and I Jacque Cousteau'd the shit out of her.
by Skindiver69 March 04, 2010

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