anal sex that is incredibly messy and generally enacted when one is black out drunk, or impaired in some way. a dirty sanchez will generally occur during the act of a korn diggity session. this term is often used in the past tense (i.e. "korn diggitied). this phrase can be used to describe any messy anal sex act, whether it occurs between a straight couple, gay couple, fuck buddies, or drunken bros. it is not regarded as something one is proud of doing. the day after engaging in an act of korn diggity, one will usually end up facing a walk of shame.
oh, no, i broke up with (insert male name here) because all he wanted to do was korn diggity me. i'm just not into it.