Somebody who almost never follows through on their word. A true flake will tell you they'll "Totally come" to an event that you put endless effort into organizing up until the day before, and then the day of the said event they're not showing up nor answering your calls or texts. These types of people are the masterminds at taking advantage of your kindness. Their constant flaking out not only succeeds in blatantly using you for your known kindness. No. When you see people flake on you, it makes you feel bad about yourself wondering what you did to make them do something like that. Flaking out subtly says "My time is more important than your time" or, better yet, "Your time don't mean shit to me." Flakes are unneeded negative energy in your life. It is recommended that you keep contact with these selfish pricks to a bare minimum, if at all.
"I have zero tolerance for flakes. Nobody will take advantage of me like that."

"That flake bailed on me at the last minute!"
by BassDude July 20, 2014
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Saying you're not going to do something and then ending up doing it at the last minute. Basically, the opposite of flaking out
"Hey, are you busy tonight?"

"Well I told my friend I couldn't come to his party because I thought I'd have work, but I might flake in and go."
by banana_graham April 17, 2019
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1. To bail out of something at the last minute

2. To break a contract, verbal or written

3. To lie about a previously made agreement
Miguel: Hey uhh I'll met you up at 7 pm at the walmart cool?
You: yeah sure NP

-7pm-

you: ....

-8pm-
you: .....

-9pm-

you: zzzz
Miguel: oh uhh yeah i cant make it
you: you flaking asshole
by TIm January 6, 2007
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n. An unreliable person; someone who agrees to do something, but never follows through.
1. John called in sick to work again today. He's such a flake.

2. Mary said she would do the research for our project, but it's been a week and she hasn't done a thing. She's such a flake.
by Gargouille May 30, 2005
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to decide to "bail" or leave at the last minute
dude he totally flaked
he flaked out on us
by one cool bitch February 19, 2006
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hey we going to get some flake for your birthday lad, its well strong but its pricey a hundred quid a gram
by merlin sheets March 15, 2012
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Someone who says that he/she will hang out with you, but then cancels at the last minute.

Someone that you made plans with, but then that person changes his/her mind when you've been waiting all day.

Someone that you plan on meeting, but then that person doesn't hit you back until the next day, saying "hi" like everything is alright or some s*** like that.
Sarah: Yeah, we can hang out tonight after I get off work at 7 PM. :)

Me: Alright, cool :). Just let me know where you want to meet.

*8 PM*

Me: ?

Sarah: Oh sorry, I've just been so busy today. Can we hang out next time?

Me: No. F*** you b****. Wasting my goddamn time. I hate people that flake. Say something if you can't hang out with me so I can do other s*** and not waste time seeing what's up with you.
by Ihateflakes October 20, 2012
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