dry orgasm

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Male sexual climax (orgasm) without external release of semen—ejaculation; most often the semen releases into the bladder, which is termed retrograde ejaculation
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

dry orgasm

The experience of male sexual climax without ejaculation or the emission of semen. Dry orgasm may be experienced by boys before puberty and by adult males with neurological or prostatic diseases.
Medical Dictionary, © 2009 Farlex and Partners