I'd just had a clean shave and shower and was ready to have a lovely night out when a bitch from the hood Clam Slammed my ass and I had to wash the slimey splatter off my face.
The female version of being cock-blocked. Another party ruins, prevents or impedes the probability of getting laid through whining, forcing to leave, laying the guilt trip and/or expecting one to "be a good friend" and sleep alone.
Almost everyone was hooking up in Mexico, until Trisha pulled the clam slam on me when she wasn't getting any play herself.