To have anal sex with a person who, prior to the deed , has swallowed a piece of raw bacon with a length of string attatched to it. One end of the string hangs out of the mouth of the anal recipient and as "the moment" approaches for the anal giver, he yanks the piece of string, causing the other person to vomit up the piece of bacon. During vomiting, the muscles in the anus become tightly clenched, causing an amazing sensation for the anal giver.