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The act of swaffling (smacking your penis against something) fast and furiously between a woman's breasts. Similar to motorboating but with a penile element.
You could motorboat your girlfriend, but may derive more pleasure from pontooning her instead. Just make sure it is ok to ejaculate in her cleavage before doing so.
by Ryanandluciana April 23, 2013
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When a female takes Viagra causing a reaction of Clitoral/Labial swelling; resembling a Pontoon Boat.
Jennifer: My girlfriend and I tried pontooning last night!
Debra: Oh my goodness you gotta boat?!
Jennifer: Noo no no, we both took Viagra and watched our shit swell up, it was like two huge fat pontoon boats!
by MascGlittersaurus June 10, 2017
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Blowing furiously onto the fatty portion of a man's testicles, producing a loud bubbly sound.
After her lover motorboated her breasts, she started pontooning him furiously.
by catmontty January 05, 2015
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To float around the true meaning of a word or phrase.
Pontooning around the word love, Debra said , I really like you.....alot....really , I like you tons...
by Sonorliter January 24, 2011
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