A cow.
AYE MATEY
Four feet tall, fold back teeth, flat head so you can rest your beer on it, and turns into a pizza at midnight.
A cow with no lips. ) ) )
You stop milking a cow after 150 years.
A: They throw them down the stairs to see what noise they make.
Aghagghhghgagaggag (Those are supposed to be gagging noises)