A person who is rude, and when given something (such as candy) will not say thank you. This person is also known for having a penis that is smaller than anyone you know. Like a centimeter would be generous.
Dude, what a Lurch Party, he whipped his vagina out in public, and didn't even say thank you when trick or treating!
A groan compared to 1960's Americantelevision series "Addams Family" character "Lurch". A deep guttural groan included with a shaking of the head. Indicating action of disgust in a sentence.
I just watched video <LurchGroan> and it was so bad it made me want to vomit.