Difference between Blurt Out and Blunder Out

BLURT OUT vs BLUNDER OUT: VERB

Hang back, Blow over, Loss of consciousness, Skip over, Firk, Peck at, Pick at, Score off, Wherret, Bump into, Hit on, Burst out, Blunder out, Ejaculate, Blurt

Fall about, Hang back, Blow over, Loss of consciousness, Skip over, Firk, Peck at, Pick at, Score off, Wherret, Bump into, Hit on, Burst out, Ejaculate, Blurt

Everything must be short, easy to blurt out between gulps of cold water.
OK to blurt out derogatory names just because someone has upset us.
Smirnov to blurt out that the man was off a missile submarine.
HD have trouble internalizing their thoughts and can blurt out inappropriate comments.
Sometimes they still blurt out stuff and I have to report it.
North Americans just blurt out their business: "I need some stamps.".
They blurt out arrogant words; all the wrongdoers are boastful.
For a moment I wanted to blurt out everything.
We all have students who blurt out in class.
Tenney, all he could blurt out was Halleluiah.