Any situation that immediately kills ones desire to have sex.
Bob: "Hey Tim have you met John's sister yet?"
Tim; "No."
Bob; "She looks like John with tits"
Tim; "Ugh!"
Bob; " Yep she's a real erection killer."

The names in this story were changed to protect the guilty. It's based on an real conversation that happened many years ago.
by OneWhoKnowsBetter February 4, 2012
Get the Erection Killer mug.