What is rocker in French? Rocker

One that rocks, as:
Celui qui déchire, car :
A rocking chair.
Un fauteuil à bascule.
A rocking horse.
Un cheval à bascule.
One of the two curved pieces upon which a cradle, rocking chair, or similar device rocks.
L’une des deux pièces incurvées sur lesquelles se balance un berceau, une chaise berçante ou un appareil similaire.
A cradle used for washing or panning ores.
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A small curved blade with a toothed edge used in mezzotint engraving to roughen the surface of the metal plate.
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An object having a curved form, as the keel of a ship or a skate blade sharpened in a curve.
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A curved stripe at the bottom part of a chevron worn by noncommissioned officers above the rank of sergeant.
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Music A rock 'n' roll song, singer, or musician.
Musique Une chanson, un chanteur ou un musicien rock’n’roll.
Music A fan of rock 'n' roll.
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off (one's) rocker Slang Out of one's mind; crazy.
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rocker-Rocker: meaning, definitions and translations