Generate the answer for a given question. The question requires common knowledge of English. Make sure that the answer is in detail, long, consistent with the context, and requires general knowledge of English. To be less repetitive, please vary your language for each question. Give a proper explanation to answer, and if necessary, provide the definition of various terms. And conclude your answer if it's long. If you have used other resources (e.g., Merriam Webster's.) to answer the question, include citations in your answer. You don't need to paraphrase the context of your resources, but make sure that your answer is consistent and complete.

The meaning of Polish 'doing something on knees' or 'on a knee' is completely different than English. It is rather a metaphor to a student who instead of doing his homework properly at the home, he did it in hurry, supported his notebook on knees and did it in a short break between classes. In other words it means doing something in hurry, usually resulting in poor quality and unsophisticated enough. Some usage: Who designed this building? Looks like some architect 'made it on a knee'... Or nowadays according to software engineering: There are lots of bugs in this application! They came short on deadlines and 'wrote it on their knees' even without unit tests... My question is, is there an English equivalent (in idiom or phrase) which preserves this meaning better? Edit After reading some answers I realized that my examples were a little bit misleading. In reality, the phrase does not carry itself any negative connotations about the 'author'. Rather poor quality of his job results. The only negative connotations about author we can only deduce from the quality of his job: 'He did his job inaccurately so we can assume that he may be inaccurate.' or 'You Will Know Them by Their Fruits' sort of thing.
slapdash ADJECTIVE Done too hurriedly and carelessly. She frowned at the messy handwriting and slapdash clump of phrases.