jerry-built (adj.) Look up jerry-built at Dictionary.com
1869, "built hastily of shoddy materials," from jerry "bad, defective," probably a pejorative use of the male nickname Jerry (a popular form of Jeremy; compare Jerry-sneak (1764) "sneaking fellow, a hen-pecked husband" [OED]). Or from or influenced by nautical slang jury (adj.) "temporary," which came to be used of all sorts of makeshift and inferior objects.