did you hear 'x' had a drainpipe with 'y' and 'z'?  who recieved?  'x'
an act of sex that can take place between one reciever of either sex, and any number of male givers
"did you hear 'x' had a drainpipe with 'y' and 'z'?  who recieved?  'x'" What is the definition of "drainpipe"?