Flake 

A person who is very ugly. You can use the words extra and mega in front of flake to determine how "flake" someone really is.

Good God Man! Samantha is so flake!

Flake by Mayo headd June 11, 2010

Flake 

It's another way to say fuck if you don't want to swear at the time or you are trying to cut down and some bad habits.

instead of...
Dude i was going to fuck that dude.
you say.
Dude i was going to flake that dude.
or
What the flake are you doing here, i thought you were dead?

Flake by liltinamariezie January 25, 2010

Frosted Flakes 

Sexual Intercourse during a woman's period.

"She was on the rag, but I was so horny I had to go frosted flakes on her." "GROSS!"

Frosted Flakes by Jay E. May 25, 2003

Flamedude 

Noun.
A guy who likes fire.

Person 1: Did you see how Bob was staring into the campfire?

Person 2: Yea, he must be a flamedude.

Flamedude by F1amedude June 8, 2009

Fakeday 

A day where an agreement is made to which all events that happened is to be forgotten.

person 1: Remember that day when the government took that kid and enrolled him to be a soldier?

person 2: We're not suppose to talk about the Fakeday.

Fakeday by Fakeday January 1, 2013

flakeseed 

A post put up on social media by a flake made to suggest that they aren't feeling well, made in advance of an event, so that they have a history of not feeling well as an excuse not to show up to the planned event.

I suspect John is planning to flake out on your birthday party tomorrow, he just posted a flakeseed on his wall so we can all know that he's "sick".

flakeseed by Serendipity37 June 25, 2015

Flaced

When you cock-slap someone whilst the penis is flacid.

"Kieran flaced me all night last night!"

Flaced by ElChuro September 3, 2015