68 

When someone performs oral sex on another person and the other person performs oral sex on them later.

Let's 68. You go down on me, and I’ll owe you one.

68 by MannyFangirl666 August 12, 2018

68 

when you do the 69 but with a negative 1

oh man i did a 68 not a 69

68 by Jamie5353 April 1, 2020

68 

Sex Position where the guy receives a blowjob and then goes to sleep.

Girl: OK now do me
Guy: Nah babe, I cba. We'll call it a 68 and I'll owe you one

68 by Wordplay>Foreplay January 29, 2021

68 

The lamest number other than 70

Ur mom: I got a 68%!
Joe: *dies*
Ligma: *dies*
Candice: Fuk *slowly dies*
No u: W h y *suffers*

68 by Lmao I'm a fag June 4, 2021

68 

a secret Code of wanting Dick and ass

Ayo can i have that 68 it looks hot let me suck it ;)

68 by Dypsy July 29, 2021

68 

Specifically in man-on-man sex, one dude sucks the other dude's cock and the other is eating out his ass.

What the fuck is 68??

Use your imagination.

Fuck yeah, let's do it!

68 by Hörndog February 17, 2022

68 

disappointment that you didn’t get number 69

McDonalds order receipt: ‘68’
You - “fuck sake i could’ve gotten 69”

68 by FR_1 August 22, 2022