A social gathering in which the people attending the party attempt to get so drunk, they can't even crawl across a porch. It involves mixing the drink in a very large tub with ice. Often a cooler is used. The drink is made with Canadian beer, vodka, whisky, and pink lemonade. Several recipes may be found online.
Brain: Hey man, what are you up to tonight?
Kevin: Dude, we're having a porch crawl. It's $10 a piece - you in?
Brain: Dude, I was so drunk last night, I don't remember what happened.
Kevin: Didn't you say that you were going to a porch crawl or something?