Humpty Dumpty sat on a wall Humpty Dumpty had a great fall The structure of the wall was incorrect So he won a grand with Claims Direct. It's Raining, It's Pouring Oh sh!t, it's Global Warming. Jack and Jill went into town To fetch some chips and sweeties. He can't keep his heart rate down And she's got diabetes. Mary had a little lamb Her father shot it dead. Now it goes to school with her Between two chunks of bread. Simple Simon met a pie man going to the fair. Said Simple Simon to the pie man 'What have you got there?' Said the pie man unto Simon 'Pies you idiot!' Mary had a little lamb It ran into a pylon. 10,000 volts went up its @rse And turned its wool to nylon. Georgie Porgie Pudding and Pie Kissed the girls and made them cry. When the boys came out to play He kissed them too cause he was gay. Jack and Jill Went up the hill To have a little fun. Jill, the dill, Forgot her pill, And now they have a son. Jack and Jill Went up the hill And planned to do some kissing. Jack made a pass And grabbed her ass Now two of his teeth are missing. Mary had a little lamb Its fleece was white and wispy. Then it caught Foot and Mouth Disease And now it's black and crispy.
There are some FAR ruder versions of Mary Had A Little Lamb (She kept it in a truck...) but those are great, Sam.