When yo dick so big you get excited unexpectedly, or with low blood sugar, and pass out suddenly. See also Dickeurysm
by Spiktacular April 25, 2017
Sudden blood rush to your dick causing light-headedness, dizziness, weak knees, and a sudden urge to masturbate
I changed the channel and a women's aerobic commercial was on. Had a Dickeurysm and had to go crank one out
by Spiktacular April 25, 2017