pump head
n.— «He is experiencing pump psychosis, or as we call it in the business “pump head.”» —“Re: My husband had CABG -HELP!” by Blackie Lawless Usenet: sci.med.nursing Aug. 11, 1996. (source: Double-Tongued Dictionary)
Further reading
How do dictionaries define colors? And why are some of those definitions so confusing, like “stronger than carmine” and “bluer than fiesta”? Dictionary editor Kory Stamper explains it all in her new book. Plus, the story behind the expression more...
The entry for geranium lake in Webster’s Third New International Dictionary describes it as “a vivid red that is lighter and slightly yellower and stronger than apple red, yellower, lighter, and stronger than carmine, and bluer, lighter, and...