Difference between Blunder and Flub

BLUNDER vs FLUB: NOUN

An embarrassing mistake
A mistake made through precipitance or mental confusion; a gross or stupid mistake.
Synonyms Error, Mistake, Blunder, Bull. An error is a wandering from truth, primarily in impression, judgment, or calculation, and, by extension of the idea, in conduct; it may be a state. A mistake is a false judgment or choice; it does not, as error sometimes does, imply moral obliquity, the defect being placed wholly in the wisdom of the actor, and in its treatment of this defect the word is altogether gentle. Blunder is a strong word for a mistake which is stupid, a gross error in action or speech. A bull is a blunder in language, involving generally a very obvious and comical contradiction; but the word is sometimes applied to any particularly inapt or ludicrously inappropriate remark.
A mistake typically caused by ignorance or carelessness.
A clumsy or embarrassing mistake.
A gross error or mistake, resulting from carelessness, stupidity, or culpable ignorance.
Confusion; disturbance.

To move clumsily or haltingly.
To make a mistake in; botch.
To utter (something) stupidly or thoughtlessly.
To make a mistake.
To move in an awkward, clumsy manner; to flounder and stumble.
To find or reach as if by an accident involving more or less stupidity, -- applied to something desirable; as, to blunder on a useful discovery.
To make a gross error or mistake.

To move or act blindly, stupidly, or without direction or steady guidance; flounder; stumble: frequently with on or along.
To make a gross mistake, especially through mental confusion; err widely or stupidly.
To mix (things) confusedly; confuse.
To confound; confuse; distract; cause to make blunders: as, “to blunder an adversary,”
To injure or destroy by blundering; mismanage: as, “to darken or blunder the cause,”
To do or make faultily or erroneously; make mistakes in through ignorance or stupidity; bungle.
To utter thoughtlessly or in a blundering manner; blurt out: generally with out: as, to blunder out an excuse.

Screw up, Bollix, Misdoing, Mishandle, Blow, Bobble, Muff, Sin, Stumble, Fumble, Blooper, Goof, Botch, Flub, Bungle

Spoil, Misdoing, Bollocks, Bollix, Blow, Fluff, Boner, Mishandle, Muff, Fumble, Bobble, Blooper, Bungle, Botch, Blunder

Boob, Boner, Screw up, Bollix, Misdoing, Mishandle, Blow, Bobble, Sin, Fumble, Blooper, Goof, Botch, Flub, Bungle

Screw up, Spoil, Misdoing, Bollocks, Bollix, Blow, Fluff, Boner, Mishandle, Fumble, Bobble, Blooper, Bungle, Botch, Blunder

In Bushworld, anything makes sense, even a very dangerous Flub like this.
3. There will most likely be another name flub Dick Poop, anyone?.
Synonyms for bungle include botch, flub, muff, blunder, blow, bumble, mishandle bodge!
Still, Mrs. Grundy would clobber a little kid for this flub.
Friends in any way flie flub flet flye flid fley.
This is what caused the flub during Obama's oath.
Instagram Police are just waiting for me to flub up.
Wettest surliness flub crossing hibernate ventriloquists scab hacker billionaire.
Twitter Tuesday to issue an apology for the flub.
Improv tochat about the ridiculous blockbuster flub, Waterworld!