Roundies 

Slang term used for Ecstasy and other similar pills. Can also be called rounds or round ones

Chuck: Hey mate. You got the roundies?
Jonny: Fukn oath.
Chuck: Awesome.

Roundies by Captain Caaaaaavvvveee maaaann February 28, 2010

roundies 

Nice, round, plump, firm, tits.

Dude, I want to stick it 'tween her roundies.

roundies by Victor, Chris, Jon, Seth, and Donny April 29, 2004

big roundie 

a pizza

You guys wanna order a big roundie?

Yes

big roundie by silvermoose January 20, 2018

roundie

Fat chicks. Mostly found in the clubs in herds.

Dude, I got wasted and fucked a nice roundie specimen.

roundie by TJ Summers April 29, 2004

roundie

What you get when your lady gives you a blowjob while at the carnival on the ferris wheel. She better work quick because you only have one round to get off.

All it took for Jim to get a roundie was slipping the bearded lady an extra 5 and inviting her to the ferris wheel.

roundie by Us 3 Wolves April 4, 2011

roundie

An ecstasy pill

"I'm havin a roundie tonight"

roundie by MelissaSmith October 30, 2008

roundie

The term for people who believe the Earth is round. see Flat Earth Society.

In 2010 23 planes crashed due to roundie pilots failing to take into account the speed of the earth moving upward.

roundie by THorck October 29, 2011