It's what makes a full oatmeal, is multiple boys. Each individual little piece of oatmeal is just an oat boy.
When a pair of prolapsed puckering anuses make contact with each other. Typically this is seen as a lesbian act. Multiple smooches in succession are referred to in plural as jailhouse kisses.
The two lesbian inmates performed gave eachother seven jailhouse kisses before the prison guard arrived with her string bean clit to set them right.