The Colac Sheila
When you hire a prostiute from the suburb of Colac in Melbourne, Australia and after some sexual acts, to top it off the women shall step directly on to the males testical, bursting the testicle resulting in excruciating pain.
"Shit man, my bloody testicles are still hurting from that god damn the Colac Sheila last night. God she got me horny though".