(male variation) typically when one man uses the shaft of his penis to tickle the entire length of another man's penis by quickly tapping with the girth of penis #1 up and down the side of penis #2. This is called a sewing machine for the fast rhythmic pattern used by penis #1, also typicaly noted for making man with penis #2 hum with joy like a sewing machine.
Sometimes a man just needs the sewing machine to run on him for a while. Once you sew you wanna blow.
by Def king 5000 February 27, 2015