Difference between Muck Up and Blunder

MUCK UP vs BLUNDER: NOUN

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 mistake made through precipitance or mental confusion; a gross or stupid mistake.
Confusion; disturbance.
A gross error or mistake, resulting from carelessness, stupidity, or culpable ignorance.
A clumsy or embarrassing mistake.
An embarrassing mistake

To make a mistake.
To move clumsily or haltingly.
To make a mistake in; botch.
To utter (something) stupidly or thoughtlessly.
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 move in an awkward, clumsy manner; to flounder and stumble.
To make a gross error or mistake.

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

Blow, Mess up, Muff, Fumble, Flub, Mishandle, Bungle, Spoil, Botch, Bollix, Bollocks, Fluff, Mire, Mud, Muck

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

Blunder, Blow, Mess up, Fumble, Flub, Mishandle, Bungle, Spoil, Botch, Bollix, Bollocks, Fluff, Mire, Mud, Muck

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

The manager did give a discount on the bill for the muck up and we did get free bread as well.
This is one who thinks they know what they are doing and makes personnel changes or procedural changes which muck up everything.
American, it demands that he disappear into the woods for fear he might muck up the timeline.
Buyers and their agents should research the title ahead of time because a second lienholder can often muck up an otherwise promising short sale.
Gives you a chance to muck up and learn from it.
See how something like that could muck up the picture.
Two, it allowed the client to muck up my reputation.