(noun) the amnesia-like phenomenon of
not knowing the name of the person currently performing sexual acts on your penis due to (1)
dimentia, (2) a general tendency toward
slutty behavior or (3) a combination of (1) and (2).
Usage 1: As Gene, who resided in an
upscale assisted living facility, entered his 90s, he was unable to recall the names or faces of his visiting children or his sexual partners. As a result, during his frequent sexual conquests just outside the shared dining facility, he would forget the names of the people providing fellatiatic services, or even why they were there. He was suffering from
dimentia dick.
Usage 2: I invited a guy from a dating app to come to my house. Now he’s riding on my cock but I can’t recall his name. I have dimentia dick.