1) The process of making something illegitimate
2) The process of bringing something to a form which is not as good as the one it was in before, i.e. the language glorified by urbandictionary.com
by Kevin Smith January 01, 2004
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(adj): Describes any action indicative of a bastard.

Not to be confused with the noun tense Bastardice.

Synonymous to Bastardly.
"Dude, you just tried to sneak a block lead into my coffee.....what a Bastardous thing to do."
by DuexTres March 31, 2009
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when someone makes something more douche-like than it was before
'fo shizzle my nizzle' is a bastardization of 'fo sheezy my neezy' which is a bastardization of 'for sure my nigga' which is a bastardization of 'i concur with you whole-heartedly, my african-american friend'
by deziree February 24, 2007
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A term used to describe someone who disregards other people in pursuit of their own self-interest. Usually includes the acts or act of lying, spreading mis-information, covering one's own ass at the expense of others, or employing other forms of bullshitting.
"The day I broke up with my girlfriend, my roomate told her she would have been better off with him instead of me. He's such a bastard.
by Truthtellerunc April 18, 2010
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To make illegitimate or to severely degrade the quality of
Man, the way Soulja Boy bastardizes rap makes me wonder if rap's even music anymore.
by Jai Alai March 15, 2008
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Besides all the usual meanings, it has a meaning in engineering as well. A bastard is a type of coarse-toothed file.
Conversation in the stores.
"Hi, I need a file."
"A half-round bastard?"
"No, a little triangular fucker."
by Croatalin December 20, 2013
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