When anally raped and the resulting tearing requires the victim to get stitches.

Slang term used by jailhouse inmates to describe a medical procedure to give one's anus stitches as a result of the anal raping given by an African-American inmate, due to the size of the average African-American penis.

All credits go to NovaWar, a Starcraft 2 commentator from Life's a Glitch TV, who came up with the phrase as a joke about related topics in a game that he was commentating, titled, "So Close That Kermit Arrived -- Starcraft 2 LAGTV"
The video can be found on YouTube.

Getting raped so hard in jail by a huge black dick that your asshole requires stitches.

n. While incarcerated, being sodomized by a cellmate of African origin with an erection of such extraordinary size that it tears the receiver's anal orifice, requiring stitches.

--Coined by Novawar of LifesAGlitchTV on a SC2 cast video "So Close That Kermit Arrived" 11/2/2012

An anal raping of such severity that surgical sutures would be required for recovery.

The term was coined by NovaWar on November 3, 2012 on the YouTube channel of LifesAGlitchTV's episode "So Close That Kermit Arrived -- Starcraft 2 LAGTV".

Source: youtu.be/u92PA5wmH1U?t=4m13s

Being raped in jail by another inmate, that causes the tearing of the anus. May also cause a tear that could be considered a new anus.

There's a Bubba in jail nailing ya and got nothing you can do about it, just huge black dick, you know what you can call that? You call it a jailhouse C-section