macmillan
The act of shoving your testicles into the anus of a girl you are having vaginal intercourse with in the missionary position.
May also include shoving your testicles into the vagina while having anal sex.
Akin to an "Armstrong".
Synonyms for MacMillan
On this page, you will find 30 slang terms related to macmillan. Some of the top words include: dog in the bathtub, dog in the bathtub, buggering, ansu, Rusty Nail, and 25 more.