The act of three people engaged in the act of eating the butthole of the person in front of them. The person in front is known as position 1, with the numbers increasing down the line. More than three people is possible, but is strong discouraged.
It was good, until the other three people started human centipeding all over the place.
Farting directly onto someone’s face with your asshole adjacent to their mouth hole
Troy fell asleep on the bench, so Wade woke him up by straddling his face and human centipeding him so that he would hear, smell and taste the nastiness. That was one fart he’ll never forget!!!
When your main bitch bails on you before a date when they agreed to do your makeup, sealing your fate like the surgeon in this popular film sealed one mouth to one rectum.
Brethany: hey r u on ur way? ;)
Anicunt: gurrrrrrl, I cant make it beeeech. Y’all gotta do yo own make up 2nite
Brethany: (to herself) damn that bitch is human centipeding me :(
And dying in yo' bed many years from now, would ya be willing ta trade all da days from dis here day ta dat fo' one chance, just one chance, ta come back here as young men an' tell our enemies dat dey may take our lives but dey will never take our freedom ... YUB NUB!