Dictionaries:
Sexual DictionaryDictionary of the F-Word

go off at half cock:

To ejaculate prematurely. See ejaculation for synonyms.
See Also: bitter half, buddy-fuck, C.T., CBB, CBT, CBTT, Chew my shorts!, fuck off, half-mast, ilium, jump off/out at..., off, premature ejaculator, urination

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