A sex act that is performed by first
anal penetration and then oral sex on the penis of the "active" part. Also known as simply "
ass-to-mouth" or AtM.
While no one knows where it originated, it carries the name of
Motor City, also known as Detroit. Perhaps named as political commentary or a comment or the local cuisine.
"You
come over here,
stud, and I'll
give you a Motor City Special."