1) A penis, aged to the point where it has absolutely no sexual use.
2) A prick over the age of 50 who does shit just to piss you off.
Woman: Hey there you rich senior citizen, how about coming into the hot tub and fucking me until you have a corinary?
Old Man: I can't, I have an old dick.
or
Jim: That 60 year old guy down the street tipped over my barbeque because he said it was making too much noise.
John: Shit guy, that bastard down the street sure is an old dick.
When oneman grabs the dick of another with a firm grasp and twists his dick.
Man in the background: GRAB HIS DICK AND TWIST IT
Person: Oh my god dude this is a MMA fight
Man in the background: THE OLD DICK TWIST
Person: YEA!! TWIST HIS DIIIIICK
you know when you wake up in the morning and you havent showered? that smell that your dick has is called day old dick. also can describe how a dick smells after sex
My mouth smells like day old dick Samuel, thanks for taking a shower!
An absolutely foolproof way to keep minors from viewing content deemed "too mature" for them to watch.
Billy: "So I was trying to watch some videos for an M rated game, and I ran into an age gate, so I put in my real birthday. SOMEHOW it managed to figure out that I am 12. CURSE YOU AGE GATE!!!"
Bill: "Fucking age gate! *quick scroll* THERE! I was born on January 1, 1904. Fuck you age gate."
A)
The Crud that collects under the keys in a keyboard. Usually more severe in the keyboards of programmers and webmasters as they tend to spend a lot of time at the the computer and thus eat at their desk. Mainly affecting IBM Model M (clicly) style boards.
B)
Can also be used to gross out Non-Techie people
A)
Bill: want to go to the club?
Bob: No, I've got to clean out my board chow, keys are starting to stick.
B)
Bill: Want to go out to get a bite?
Bob: No, i am just going to have some of my board chow/
Bill: Whats' that?
Bob: The food scraps that collect in my keyboard; Want some?
Bill: *GAG* *HURL* *GAG*