The ultimate pre gaming for the notorious freshman fifteen.
Dave: Dude have you seen Alans sister recently? She put on a lot of weight before college.

Ron: Yeah man, forget the freshman fifteen, she went full send on the senior sixty!
by GT_v1 March 1, 2018
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similar to 69 except the focus is on eating the anus, it is the mutual "fore"play preferred before gay guys have sex
Since Ray is a designated top they never sixty-four, but rather 32.
by EatsBitasAss October 26, 2017
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n. A Chicagoland slang for mid-grade marijuana. It is often concidered as "failed" dank and should contain minimal seed count. The name refers to the amount for it is sold for: 30 dollars an eighth or 60 dollars a quarter.
Hey Jeremy, what'd you pick up this week?

Just an ounce of the thirty-sixities.
by dee eye zee May 25, 2005
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Stemming from the words Sixty-nine and "Om nom nom nom", sixty-nomming is when two people devour each other's genitals with the use of sound effects.
Shana: "Would you mind fingerbanging my pussy next time we sixty-nom? I would sincerely appreciate it."
Jamelle: "No probs babe, perhaps you could glass bottom boat me afterward."
Shana: "Indeed."
by BackPussyLover February 2, 2010
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the pracice of positioning oneself with one's partner so that both people have the other's genitalia in their mouths
they were sixty nining in the closet
by Capt. capacitor April 21, 2004
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69ing on the beach with an ass full of sand
Man, last night got crazy! She took me to the beach and didn't have a blanket, but that didn't stop us from doing a Sandy Sixty
by disturbedurb September 11, 2018
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Sexual position where 2 people of any sex perform oral sex on each other at the same time
d00d did you see that pr0n movie where those 2 girls did a sixty-nine?
by Ge64 July 30, 2005
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