one pump chump
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English
[edit]Etymology
[edit]Chosen for the rhyme. From the tendency of people suffering from premature ejaculation to ejaculate after a very short time, perhaps even after a single pelvic thrust or “pump”, during sexual intercourse.
Noun
[edit]one pump chump (plural one pump chumps)
- (informal) Premature ejaculator (person suffering from premature ejaculation).
- (informal, by extension) someone who only does something once.