A person that performs sexual favours or activities in the back of a cab/taxi in order to get a free ride to wherever you are going.
"Man this chick standing at the cab rank offered me a blowjob if i paid for her taxi ride home. She swallowed all my jism juices for the whole ride home. What a cab slut!"
ayon kay sanchoman ika-08 ng Nobyembre, 2007