Any girl younger than yourself. The prime age of a rubber ducky is 13 or 14 years
"Hey Hayden have you seen this years grade 8's, rubber ducky hey"
by Duck Hunter Society of Ayr October 11, 2007
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A chubby Asian man.

As heard in Ernie's "Rubber Ducky" song:
"Find a fellow that's cute and yellow and chubby."
by alfredopuppet March 14, 2009
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When a dude is fuckin’ and fills up a condom. He takes it off, blows it up with his mouth like a balloon animal, in the shape of a duck.
Amelia was not appreciative when I gave her a Rubber Ducky the night of our anniversary.
by Vanillaest Gorilla January 6, 2019
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the act of receiving a blowjob while the condom is on the receiver's penis.
The rubber refers to the condom, and the ducky refers to the woman ducking in a bj giving motion.

HAHA you only received a rubber ducky because your girlfriend is christian.
by jewcakes44 November 25, 2011
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a yellow plastic duck, usu. squeaks, that one can play with in the bathtub.
Usu. very cute and very yellow.
by Cari December 15, 2003
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When you're doing a girl (she's on bottom) and you hold her by the throat to get a better grip. Due to the pressure on her vocal cords, instead of moaning, she can only make sqeak-like noises. Kinda like a rubber duckie.
The bitch pissed me off so I held her by the throat while fucking her until she rubber duckied.
by levski_swag November 6, 2010
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A male that masturbates using a fake silicon pussy.
Jennifer: Norm's cute.

Camille: Don't you know he's a rubber ducky? Terry caught him last week with his shaft to the hilt inside a super head honcho fake pussy.
by Camille Tightbody November 3, 2011
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