a very strong material, strong/stronger than steel that is 40-45 % lighter than steel

it is used in many bmx bikes to reduce weight, but keep strenghth
i should make mah dick out o that shit, its hard, strong, but damn man, i's heavy as fuck
by wass yo name foo? October 22, 2003
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A man who anally rapes children and dogs. Escapes on BMX bike.
That guy jacking it on that cat's back is a Vintage Chromoly
by Doctor Lee November 23, 2007
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