Riffty 

a big phat tumper of a spliff. Preferably smoked during a boomass day in the summer with a pint in one hand and your riffty in the other hand whilst watching some cricket

fancy a Riffty on this fine summer day

Riffty by nathan small May 2, 2006

Rifty 

Use code rifty

Dude you have to use code rifty in the fortnite item shop

Rifty by TheMostEpicG March 30, 2019

Rifftastic 

When a song has immensely good riffs and as such rocks completely, it can be said to be rifftastic.

In dialogue: "Wow, Painkiller by Judas Priest is just so incredibly rifftastic!!"

Rifftastic by Mooman May 20, 2004

rifty 

Someone who uses lots of memes in their discussion.
Often used to refer to someone who "rustles jimmies"

The rifty gets irritated when we rustle his jimmies.

rifty by The Almighty Sackboy January 27, 2016

riffy 

something of an unclean nature;
synonymous to dirty.

Carly is so riffy, wouldn't touch her with a barge pole.

riffy by roasty-toasty January 1, 2008

Riftyanity 

The beginning of a new religion.

James: "Hey, do you believe in Riftyanity?"
Kyle: "Yeah, I do."

Riftyanity by Kameymabrine August 8, 2016

rifftrax

Rifftraxs are .mp3's that you sync with a DVD which provide a hilarious MST3K-esque commentary. It was created and is performed by Mike Nelson of MST3K fame, though occasionally guest riffers with stop by to help, such as Kevin Murphy (also of MST3K fame) in the Star Trek V riff.

"It sucks that MST3K got cancelled, huh?" says Uninformed Yet Impressionable Friend
"DUDE! YOU GOTTA CHECK OUT RIFFTRAX! IT'S JUST LIKE MST3K, EXCEPT NOW HE MAKES FUN OF HOLLYWOOD MOVIES!" replies Hyped Up Rifftrax Fan.

rifftrax by Mike August 23, 2006