Noun - A shaft of Human cockmeat in the size range of 1.5 to 50 microns in length, or the width of Human hair. A Patrick is typically approximately 2 to 3 inches wide. Because of these dimensions, many nickname it a McPud.
"I'm so salty, I just found out my boyfriend has a Patrick!"
"Shiiit gurl, I'm so sorry to hear! You must be drivin' a salt truck right about now!"