simple past tense and past participle of chase a rainbow

A narrow space between walls through which plumbing is run. / (especially in public restrooms) A narrow room or closet that houses a building's plumbing.

plural of pipe chase

(figuratively) A futile search, a fruitless errand; a useless and often lengthy task whose execution is inordinately complex relative to the value of the outcome.

Alternative spelling of wild-goose chase

(dated) go away (and stop bothering me)

plural of wild goose chase

plural of wild-goose chase

present participle of chase one's tail

(idiomatic) To busily try to perform many tasks or to repeatedly revise one's plans, especially with inefficient use of one's time and limited results.