A witty insult for when ones penis slowly and gradually gets soft, and can't keep a hard on. Typically used for embarrassing someone from the lack of erection for stimulating their partner.
Man, I can't believe you didn't get laid with that girl! You really missed your mark and showed her some gradual shrinkage.
by Lighty1800 July 4, 2022
Get the Gradual Shrinkage mug.