the act of making direct eye contact with someone, then looking at that person's dick while they watch you, then again, making eye contact with that person, usually while giving a look of satisfaction. this is usually performed to establish dominance or making that person feel as uncomfortable as possible.
"how was your night, sweetie?"
"swell. I looked at this dude, then at his dick, and smiled at him"
"sounds like our grandson is quite the pro at creepy copping! aww! *pinches cheeks*