The grandfather clock is performed while suspended in the air, generally with the help of 2 others. It is when you are hovering above a sleeping persons face with your dick and/or balls hanging directly over their face, waking them with either a slap or a loud noise (preferably similar to a grandfather clock striking the hour).
by Azzypoo September 16, 2011
When you are down to your “reserve” pair underwear or boxer shorts that have a hole in the bottom exposing your dick hanging down simulation a working grandfather clock.
When I was wearing my old boxer shorts I walked out in front of my girlfriend and she said nice grandfather clock.
by Wap90 January 12, 2018
A total upset. One of the biggest surprises you've seen in a long time. Like discovering Ma'am and George had a secret passage to upstairs for Webster, hidden away inside a faux grandfather clock.
"Wait a second. So you're telling me Ivy is a dude???"
"I slid off her pants and...fuck. I think I'm going to be sick again."
"She didn't have a bulge or anything?"
"Nope. Like a fucking stairway in a grandfather clock...ugh...I'm going to hurl again."
"I slid off her pants and...fuck. I think I'm going to be sick again."
"She didn't have a bulge or anything?"
"Nope. Like a fucking stairway in a grandfather clock...ugh...I'm going to hurl again."
by pH Balance January 31, 2008
Where one's testicles hang so low that they swing between its owner's two legs like the pendulum of a grandfather clock.
by nate hawthorn June 29, 2009
A giant public version of that time-telling thing you put on your watch. Side Note: Five times out of ten, it is safe to assume that said grandfather clock that you see probably wasn't your grandfathers.
by XxLoneWolfxX April 19, 2022
Shut your Mouth, did Giirth just do Dat thing? Yes Siree, The Grandfather Clock Jig is his Wheelhouse Move, recognize yo!
by Bennie BoyTV June 16, 2019