plumbering up

Verb

plumber up (third-person singular simple present plumbers up, present participle plumbering up, simple past and past participle plumbered up)

1. (rare, slang, transitive) To botch or ruin.
   • When a pilot no longer heeds the demands of vanity or misplaced pride; when he attempts not to salvage a plumbered-up approach with a desperate bit of squirming and jockeying, but rather shrugs it off as a well-deserved object lesson in complacency and tools around the circuit again—then he is a...1956 May, “Whatever Happened to the Waveoff?”, in A. B. Young, Jr., editor, Approach: The Naval Aviation Safety Review, volume I, number 11, Washington, D.C.: U.S. Government Printing Office, →ISSN...
2. (colloquial, rare, transitive) To work on (something) as a plumber; to equip (something) with plumbing.
   • The tooth was not pulled but the dentist found a couple of cavities which he plumbered up a little.1931 October 1, W. F. Fox, Jr., “A Corner in Pigskin”, in The Indianapolis News, last edition, volume LXII, number 255 (19,315 overall), Indianapolis, Ind., →OCLC, section 2, page 9