6.9 

A Small Animal watching as two people engage in a 69

Jack: Me and The Miss were doing the dirty 69 styles while the cat watched
Jim: Ah, a 6.9er

6.9 by NZdylan October 20, 2010

6.9 

A good time ruined by a .

Guy 1: I was 69-ing with Jessica and she got her period.
Guy 2: That's fucking disgusting. I am so sorry you had to experience that, dude.
Guy 3: Dude, you totally got 6.9-ed.

6.9 by Roofie GIN and Tonic October 11, 2018

6.9 

A 69 when a woman is on her peirod or in slang "the rag"

Joe: Josh, what is a 6.9?
Josh: I dont know, what is it?
Joe: A 69 when the girl is on her period

6.9 by Bangdar June 4, 2007

6.9 

A great thing ruined by a God damn period.

69 with my girlfriend turned into 6.9 real quick.

6.9 by Wreckroller February 11, 2017

6.9 

A glorious thing ruined by a period

Ugh we almost 69ed but ended up 6.9ing

6.9 by jonojudge153 January 6, 2018

6.9 

It's a 69 interrupted by a period.

Me and my girl tried having a 69 last night, but her Aunt Flo unexpectedly came by, so it ended up being a 6.9.

6.9 by Pudge from Brockton, MA January 26, 2021

6.9 

The noice number that involves something very interesting. And bad. Its when its between a big person, and a small person (child/midget etc...)

That latest pedophile caught did the 6.9 with a child.

6.9 by FlameWolven 2 March 6, 2021