up flat down

term for a type of snowboarding jib that slants upward to a flat part and then slants downward again. exellent for showing off your skills.

"Dude, I totally nailed my backside 540 on that up flat down box."

by boardsport7 January 27, 2008

Flat Up

A combination a “straight up” and “flat out”. It’s more powerful.

He flat up lied for us.

by Barbara_Bangkok May 27, 2022

Flat up

When a bubbly liquid, like soda, goes flat

"I hate buying 2L bottles of coke, they always flat up quickly"

by philcagitz July 29, 2024