Uprift
An uprift is a fart classification that indicates vertical mobility. This fart is capable of traveling up the ass crack and out the top of your pants. However, in the right positions this unique fart can travel in between the taint and up to your balls, tickling them in the process.
Chad: "I just busted a rad uprift bro! That shit straight up fondled my scrote!"
Topher: "Niceeeeeeeeeeee"
Topher: "Niceeeeeeeeeeee"