phallocrypsis

phal·lo·cryp·sis

(fal'ō-krip'sis), Dislocation and retraction of the penis. [phallo- + G. krypsis, concealment]

phallocrypsis

(făl″ō-krĭp′sĭs) [″ + krypsis, hiding] Contraction of the penis so that it is almost invisible.