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!
Ron: Yeah man, forget the freshman fifteen, she went full send on the senior sixty!
by GT_v1 March 1, 2018

similar to 69 except the focus is on eating the anus, it is the mutual "fore"play preferred before gay guys have sex
by EatsBitasAss October 26, 2017

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.
by dee eye zee May 27, 2005

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."
Jamelle: "No probs babe, perhaps you could glass bottom boat me afterward."
Shana: "Indeed."
by BackPussyLover February 2, 2010

the pracice of positioning oneself with one's partner so that both people have the other's genitalia in their mouths
by Capt. capacitor April 20, 2004

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 10, 2018

by Ge64 August 26, 2005
