Pibb-sure 

Confident one is correct to the point one is willing to bet cans of soda, especially Mr. Pibb. Part of a betting game established by Mr. K, math teacher.

Mr. K: Are you sure?
Student: Yeah.
Mr. K: But are you Pibb-sure?
Student: Bring it on.

Pibb-sure by Anthony C. Kuhnz October 10, 2007

neopolitan cappuccino more cappu than ccino and make sure theres no more than 4 ounces of milk, the beans wont have the right texture otherwise, and make sure they spell my name right on the cup.

Moxxie's first coffee order from Helluva Boss episode 6, "Truth seekers"

"what do you want mox?", " I'll have a neopolitan cappuccino more cappu than ccino and make sure theres no more than 4 ounces of milk, the beans wont have the right texture otherwise, and make sure they spell my name right on the cup. they always spell it foxy or Roxy, i hate that. If you cant handle that i'll have a Ventee traditional misto please use soy milk with two blond shots, Affagato and ristretto. I'd also love 3 vanilla pumps at the bottom, then add the coffee."

neopolitan cappuccino more cappu than ccino and make sure theres no more than 4 ounces of milk, the beans wont have the right texture otherwise, and make sure they spell my name right on the cup. by VoidPineapple August 23, 2021

dern sure

"Dern sure" is a word used by a crazy man the loves cats and says "what the brown","OH MY MEOW",or simply just "meow", "Dern sure" is used when you are very sure of something. this mans name is jordan others call him hordan but he is better know as Kootra. Kootra is a youtube video game commentator and leader if "The Creatures" he Dern sure is funny.

He Dern sure is a heavy !

dern sure by Whatthebrown July 24, 2014

Hat sure 

A measure of surety to the extent that you would eat a hat. If you are proven wrong you must eat a paper hat. The size of the paper hat corresponds to the level of surety you expressed. (A5 hat sure is less sure than A4 hat sure but A4 is usually the standard.)

"I'm pretty sure that Walt Disney is frozen..."

"Are you hat sure?"

"Yes."

"How hat sure? A4 hat sure?"

"Yes."

"Well you are wrong, now eat this paper hat I've made for you."

Hat sure by DiosaTaylor May 30, 2013

just to be sure it's Westinghouse 

Means the same as the phrase, "just to be sure"; the "it's Westinghouse" part originated from television commercials for Westinghouse Electric in the 1950s, who's catchphrase was, "You can be sure, if it's Westinghouse".

{Craig}: Hey Paul, did you remember to charge your wheelchair today?
{Paul}: I think so but let me check just to be sure it's Westinghouse.

just to be sure it's Westinghouse by Telephony July 28, 2014

99% sure

A phrase used when you think something is right but you really don't know jack shit.

Guy 1: Is my wife home from here business trip yet? I'm planning on bringin' some chicks over for a party.

Guy 2: I'm 99% sure she isn't.

Wife: I've been here all fucking day you asshole.

99% sure by Jay Danger April 24, 2008

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Something I see after I send a definition to UD.

"Thanks! We've sent you an email, but we need to make sure your email works. Click the link in your email and your entry will be reviewed soon."

Oh.

Thanks! We've sent you an email, but we need to make sure your email works. Click the link in your email and your entry will be reviewed soon. by Thanks! We've sent you an em April 4, 2013