The act of choking so violently on a huge cock, that the giver is choking and gagging. Hence, making a -deep, back of the throat quacking sound.

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Quacking is a term which refers to the loud guttural sound which reverberates from a females esophagus as a penis is thrust into it and then removed forcibly creating a suction-force induced sound which resembles the characteristic harsh sound uttered by a duck.

In a cycle race, when riders are bumping and grinding for a better position in the peloton. This sometimes results in riders being pushed off the road or into the "gutter."

1. verb, to quack.
To talk crap.
2. verb, to quack.
To talk really fast so that only people on the same wave length or with special hearing aids can hear you.

Quacking; to be afraid of something like a duck after a gun is shot.

A term to describe the popular use of duck fat as a lubrication aid in sexual stimualtion