<human>: Can you give me a shortened version of the text?

So this actually happend yesterday.  

My best friend (let's call him Mark) lives in a small village about 100km from me and they were having something like goodbye to summer "party" which occured in an rusty "culture" building where old local people were gathering for all sorts of activities.  

It started around 9:00 PM so we had few beers at his place before we went there. When we arrived, there were literally 6 grandmas bouncing with a balloon around the parket with some shitty music playing from the local DJ.  

The party got eventually pretty good when more of our friends arrived and we got more intoxicated.  
  
This is where the fuck up starts.
After like 8 beers and some shots of vodka, me and Mark headed to the restroom. As we did our thingy and headed to the exit some woman in her 30's stopped us and asked "Haven't you guys seen my mother in there?" In my wasted state I let out of my mouth the first thing that I could have think of.. shitty drunk joke. I said "Um, yeah just give her a second, she needs to dress up, we gave her a hard time" and started to giggling at my geniality. The woman looked at me like I'v performed some sick magic trick right in front of her. Then I turned around and there she was. Clearly her mother in her 70's, giving me the worst deathstare I ever reciever. We stared at each other for like 5 seconds and then we bailed out. Fornunately didn't see her for the rest of the night or at least I don't remember.
<bot>: While wasted, made a joke about having a threeway with someone's mother in the restroom while she was standing directly behind me.