A girl, usually of the unattractive type, who'll do anything to get laid. Very much like a bloodhound on the trial of a scent. You know the ones at the bar whose legs can barely support their own weight, but still think 'why don't you buy me a drink?' is a good pick up line.
1. (v) The act of forcefully engaging in rapid anal sex so the penis forces air into the duck, then quickly pulling the duck off, turning it around and squeezing it so the escaping gas makes a frapping noise.