Note--the dictionary i take this from i feel takes liberties:)
Loggerhead should be used only in sense of " at loggerheads".
But also i should add "knucklehead" is oft a word expressed between friends that can be gently acted out.
To friend "ah, you knucklehead:)" and tap extremely lightly the friends head with knuckles.
It can also be used by one's self addressing self as in " 'umpin 'iminy i am such a knucklehead" at which point one batters one's own skull.:)
He played his video game night and day.
The MAZE of Death.
But that is the game we all are in, the trick, don't believe it.Get above it all and imagine nothing is what it seems.Kill the machine.otraque