Penis that still has the foreskin so the head is far too sensitive, especially in young men, resulting in a hair-trigger. Being uncircumsized also results in the accumulation of smegma under the foreskin which is likely to make any jizz gobbler throw up their lunch when they encounter it.
Jenny: Ooh he's cute
Sasha: Yeah, but his uncircumsized manhood looks like a sausage with a roll neck sweater on.
(of genitals): complete, whole, normal, natural, but implying instead that it is normal to have had the penile prepuce (foreskin) or clitoral prepuce (hood) cut off.