Persons possessing unique laughing sounds. Usually hired by comedians who would fill the house with as many as he could afford in order to impressmanagement and get themselves 'held over.'
A maneuver where a male pulls his pants down while in a standing position (generally to the ankles), lifts his shirt with one hand, and expeditiously thrusts his hips back and forth in a swinging motion. If done correctly, the thrusting will swing his "member" into contact with the abdomen on the upswing, and the leg or anus on the downswing, thereby creating a "clacking" sound. It is recommended that this act be augmented by pouring a beer over the crotch with the free hand to accentuate the clacks being generated.
Ross was getting annoyed by Carissa so he decided to pull out The Clacker to make her leave.
By Robbie
Clacker
a canal in a female mammal that leads from the uterus to the external orifice opening into the vestibule between the labia minora
Person 1 - 'I've got a really itchy Clacker'
Person 2 - 'Hun, you slept with that man whore last week, you’ve probably got an SDT.'