Another word for erection. Originated from getting boners in school everyday around 9:30. You can walk around with it down your leg to show everyone, or you can tuck it under your ass if you're ashamed of it. When your boner is limp and no longer of value to your sexy ass teacher, it is called a "9:31".
When the fly ass whore sat on my dick, I felt like it was 9:30, so she fucked my dick 'til I busted baby juice.
by Suckdickcity930 October 13, 2006
 Get the 9:30mug.
Get the 9:30mug. by Symplxls October 26, 2019
 Get the October 9mug.
Get the October 9mug. by Mattsavage November 1, 2017
 Get the iphone 9mug.
Get the iphone 9mug. Sister: what are you doing?
Brother: its 9 august. Its national throw your sister from the balcony.
Sister: Oh, ok then
Brother: its 9 august. Its national throw your sister from the balcony.
Sister: Oh, ok then
by 9-year old August 8, 2021
 Get the 9 Augustmug.
Get the 9 Augustmug. People born on January 9th are just the best. Like y’all would never find people as hardworking as the ones born on Jan 9th out there.
“Hey did you know that Alexandra’s born on January 9th?”
“Oh, guess that explains why she’s such a keeper”
“Oh, guess that explains why she’s such a keeper”
by keehoho October 23, 2019
 Get the January 9mug.
Get the January 9mug. by clobamacare November 6, 2019
 Get the december 9mug.
Get the december 9mug. by Bäckeri March 3, 2021
 Get the Asphalt 9mug.
Get the Asphalt 9mug.