flat packed 

What your balls feel like after being squished in by a seat for an extended periord of time.

After a 90 minute ride into the city, Ian's cajones were more flat packed than a pre-delivered Billy bookshelf.

flat packed by the original imac March 16, 2010

Flat Packer 

A person who carries a pack of cigarettes in their back pocket all day long. Resulting in a FlatPack.

Joe, I could smoke a cigarette if you weren't such a flat packer.

Flat Packer by Angie Says So June 8, 2015

Flat Packer

A slur for someone from Sweden

Person 1: Well you cant trust those flat packers anyway!
Person 2: that's true, the Swedish can't be trusted.

Flat Packer by JustSamDJ December 20, 2025

flatbacked

1.Past tense of "flatbacking." To have slept (ie sexed) your way through something.

2. To have prostituted your way through something, either by trading for sex or by selling sex for money in order to pay.

"She won't be the first co-ed to have flatbacked her way through college." Ice-T (Law & Order: SVU)

flatbacked by Country Girl Big City June 22, 2012