This idiom simply means to harbour a grudge. It comes from the nineteenth century US practise of spoiling for a fight by carrying a chip of wood on one's shoulder, daring others to knock it off.
"Chip on my shoulder"--By: 50cent
Albulm---Get rich or die tryin'
Song tittle---Many men
by Unique April 8, 2004
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RFID(Remote Frequency Identification) is here. Approved for human use by the FDA in 2004, it's now a popular way for authorities (big brother government) to monitor its citizens.

Some religious beliefs relate this form of RFID usage to the 'mark of the beast' - as mentioned in the bible's book of revelations.

Likewise, many non-religious concerned citizens protest and detest the use of RFID on human beings.

However, marketing techniques overpower word of mouth, and therefore many people see this extent of governmental control as harmful and painless.

Having a chip on your shoulder/arm implies you are being controlled/monitored/hunted by the powers that be.

Do they really need to know where you and I eat/sleep/fornicate/poop?
I aint getting no chip on my shoulder!

Don't let them put a chip in your shoulder either!
by m7 October 16, 2007
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When a magician shoots your shoulder, turning it to stone, and shortly afterwards your friend throws a baseball at you, assuming you can catch it, but you cant because your shoulder is stone, so it hits it, and chips it. And in the ensuing rampage that you enter after having your shoulder inadvertently chipped, you accidentally kill your girlfriend.
Brandi: DANG. i was replaced within 20 seconds. That's a record!
Austin: No chip off my shoulder
Brandi: X_X
by imaustinb March 29, 2011
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