To make a bastard doesn't necessarily have to refer to people. Giving a legitimate word a new meaning could be bastardising the word. Basically, it's butchering the English language. See orphaned. If you have an idea, and someone takes the idea, changes it around and gives it new meaning, that's bastardising. If you design a newsletter, for instance, and someone else takes over and keeps part of your design but applies elements that don't match up with yours, that's bastardising. You get the drift.
Henry, how do you like the newsletter now that Sue's been doing it for a year?
I'd like it better if she hadn't bastardised my design.
When you have to pee in a movie but don’t want to miss anything, and must do the following mental equation: will the amount I have to pee cause enough discomfort to diminish my attention capacity for the remainder of the movie to an extent which is greater than the amount of the movie I would miss by making a mad dash to the restroom.
I saw Satantango last night, wonderful film but by the 5th hour I had to start doing pee calculus.
Short-hand for the word floccinaucinihilipilification, meaning the estimation of something as valueless (encountered mainly as an example of one of the longest words in the English language).