The act of refusing to completely remove your pants before intercourse, and choosing instead to just pull your dick out through the fly. While unnecessary and ultimately will result in chafing, it is a very common practice.
Went on a date with Rebecca yesterday, things got hot and heavy fast, didn't even have time to get my pants off, so I was zip-lining her!
Zip lining in North Wales is a slang term for a gay facial gangbang and rimjob with a group of friends and strangers, where one participant is tied up, and the other participants take it in turns to slide into his mouth, until they ejaculate, and then they move onto the bum hole for finishing. .ie at the bottom of the Zip Lining.
Dave was looking forward to a weekend of Zip Lining in North Wales, but his jaw wasn't!
When you have to pee in a movie but don’t want to miss anything, and must do the following mental equation: will the amount I have to pee cause enough discomfort to diminish my attention capacity for the remainder of the movie to an extent which is greater than the amount of the movie I would miss by making a mad dash to the restroom.
I saw Satantango last night, wonderful film but by the 5th hour I had to start doing pee calculus.
Short-hand for the word floccinaucinihilipilification, meaning the estimation of something as valueless (encountered mainly as an example of one of the longest words in the English language).