What it means: When someone is being annoying or naughty, they're usually referred to a bit of a willy for their behaviour. When to use it: When you're going out with someone and they know that they're good looking but their penis isn't big enough to justify such arrogance. "You're such a d*ck. Your willy isn't big enough for me to want to put up with this for the rest of my life. Plus you chopped off my dad's head and I'm still raging about it." Bonus: "Suck my d*ck." (Both literally as foreplay or metaphorically like Demi Moore in G.I.Jane). Where it came from: Dick was both a forename and a surname but the term originates from the name Richard which was shortened to Dick. Back in the day, Richard was a popular name so there were a lot of Dicks walking around the streets and the name was attributed to an everyday man.