piss proud

Etymology
From +. Appears in Francis Grose’s A Classical Dictionary of the Vulgar Tongue (1796):
 * “P ISS-PROUD . Having a false erection. That old fellow thought he had an erection, but his — was only piss-proud; said of any old fellow who marries a young wife”.

Adjective

 * 1)  Having an erection when waking from sleep or, more generally or metaphorically, a false or "empty" erection.
 * 2)  (by extension) Falsely proud, implying an outward display of success or virility belies a dubious reality.
 * 3)  Denoting an old man who marries a young woman, implying the only erection he could muster would be prompted by the bladder.
 * 4)  Paruretic.
 * 1)  Denoting an old man who marries a young woman, implying the only erection he could muster would be prompted by the bladder.
 * 2)  Paruretic.
 * 1)  Paruretic.