A psychological condition relating to the misconception that the male genitalia on one's body is, in fact, larger than it visually appears. This inflated self-image of the penis can also influence social behaviour. Symptoms of severe Cockinsons can be observed in a delusional perception of one's sexual activity.
Jorge: So I heard Ryan was diagnosed with Cockinsons Disorder the other day.

Aidan: Yup, after leaving the specialist's office he went home and sat in his room playing Starcraft 2 for 12 hours. Afterwards, he was convinced that he had had sexual encounters with 12 women during that time period.

Ryan: Get bitches bro.
by Dr. Cockinson August 12, 2011
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