A Noun meaning horrible, shitty, or just in general bad. Usually used to describe a bad version of an original, such as "The bastardation of the song." or "The bastardised version."

1. A child whose parents ain't married
2. A way to insult someone without swearing

To Bastardize :

To take something and

Fuck it up beyond
all recognition.

Besides the usual usages of a child born out of wedlock and a suitable name for someone you don’t like, there are other meanings as well. At one time it was used to refer to a hybrid device or one adapted from one purpose to another; in 1517 it was used to refer to second rate Spanish Sack wines and in engineering it refers to a type of coarse-toothed file.

A term used to describe a retarded bastard.

bas-tard-ize (Verb)

1. To diminish the quality or character of;

2. To declare or name someone a bastard; illegitimize

3. To fuck something up; completely ruin it.

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